640649100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:825

約数の個数: 288

約数和(自身を含む): 2358071296

約数和(自身を除く): 1717422196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 31, 35, 39, 42, 50, 52, 60, 62, 65, 70, 75, 78, 84, 91, 93, 100, 105, 124, 130, 140, 150, 155, 156, 175, 182, 186, 195, 210, 217, 260, 273, 300, 310, 325, 350, 364, 372, 390, 403, 420, 434, 455, 465, 525, 546, 620, 650, 651, 700, 757, 775, 780, 806, 868, 910, 930, 975, 1050, 1085, 1092, 1209, 1300, 1302, 1365, 1514, 1550, 1612, 1820, 1860, 1950, 2015, 2100, 2170, 2271, 2275, 2325, 2418, 2604, 2730, 2821, 3028, 3100, 3255, 3785, 3900, 4030, 4340, 4542, 4550, 4650, 4836, 5299, 5425, 5460, 5642, 6045, 6510, 6825, 7570, 8060, 8463, 9084, 9100, 9300, 9841, 10075, 10598, 10850, 11284, 11355, 12090, 13020, 13650, 14105, 15140, 15897, 16275, 16926, 18925, 19682, 20150, 21196, 21700, 22710, 23467, 24180, 26495, 27300, 28210, 29523, 30225, 31794, 32550, 33852, 37850, 39364, 40300, 42315, 45420, 46934, 49205, 52990, 56420, 56775, 59046, 60450, 63588, 65100, 68887, 70401, 70525, 75700, 79485, 84630, 93868, 98410, 105980, 113550, 117335, 118092, 120900, 132475, 137774, 140802, 141050, 147615, 158970, 164269, 169260, 196820, 206661, 211575, 227100, 234670, 246025, 264950, 275548, 281604, 282100, 295230, 305071, 317940, 328538, 344435, 352005, 397425, 413322, 423150, 469340, 492050, 492807, 529900, 586675, 590460, 610142, 657076, 688870, 704010, 738075, 794850, 821345, 826644, 846300, 915213, 984100, 985614, 1033305, 1173350, 1220284, 1377740, 1408020, 1476150, 1525355, 1589700, 1642690, 1722175, 1760025, 1830426, 1971228, 2066610, 2135497, 2346700, 2464035, 2952300, 3050710, 3285380, 3444350, 3520050, 3660852, 4106725, 4133220, 4270994, 4576065, 4928070, 5166525, 6101420, 6406491, 6888700, 7040100, 7626775, 8213450, 8541988, 9152130, 9856140, 10333050, 10677485, 12320175, 12812982, 15253550, 16426900, 18304260, 20666100, 21354970, 22880325, 24640350, 25625964, 30507100, 32032455, 42709940, 45760650, 49280700, 53387425, 64064910, 91521300, 106774850, 128129820, 160162275, 213549700, 320324550, 640649100]

約数ペア:

[(1, 640649100), (2, 320324550), (3, 213549700), (4, 160162275), (5, 128129820), (6, 106774850), (7, 91521300), (10, 64064910), (12, 53387425), (13, 49280700), (14, 45760650), (15, 42709940), (20, 32032455), (21, 30507100), (25, 25625964), (26, 24640350), (28, 22880325), (30, 21354970), (31, 20666100), (35, 18304260), (39, 16426900), (42, 15253550), (50, 12812982), (52, 12320175), (60, 10677485), (62, 10333050), (65, 9856140), (70, 9152130), (75, 8541988), (78, 8213450), (84, 7626775), (91, 7040100), (93, 6888700), (100, 6406491), (105, 6101420), (124, 5166525), (130, 4928070), (140, 4576065), (150, 4270994), (155, 4133220), (156, 4106725), (175, 3660852), (182, 3520050), (186, 3444350), (195, 3285380), (210, 3050710), (217, 2952300), (260, 2464035), (273, 2346700), (300, 2135497), (310, 2066610), (325, 1971228), (350, 1830426), (364, 1760025), (372, 1722175), (390, 1642690), (403, 1589700), (420, 1525355), (434, 1476150), (455, 1408020), (465, 1377740), (525, 1220284), (546, 1173350), (620, 1033305), (650, 985614), (651, 984100), (700, 915213), (757, 846300), (775, 826644), (780, 821345), (806, 794850), (868, 738075), (910, 704010), (930, 688870), (975, 657076), (1050, 610142), (1085, 590460), (1092, 586675), (1209, 529900), (1300, 492807), (1302, 492050), (1365, 469340), (1514, 423150), (1550, 413322), (1612, 397425), (1820, 352005), (1860, 344435), (1950, 328538), (2015, 317940), (2100, 305071), (2170, 295230), (2271, 282100), (2275, 281604), (2325, 275548), (2418, 264950), (2604, 246025), (2730, 234670), (2821, 227100), (3028, 211575), (3100, 206661), (3255, 196820), (3785, 169260), (3900, 164269), (4030, 158970), (4340, 147615), (4542, 141050), (4550, 140802), (4650, 137774), (4836, 132475), (5299, 120900), (5425, 118092), (5460, 117335), (5642, 113550), (6045, 105980), (6510, 98410), (6825, 93868), (7570, 84630), (8060, 79485), (8463, 75700), (9084, 70525), (9100, 70401), (9300, 68887), (9841, 65100), (10075, 63588), (10598, 60450), (10850, 59046), (11284, 56775), (11355, 56420), (12090, 52990), (13020, 49205), (13650, 46934), (14105, 45420), (15140, 42315), (15897, 40300), (16275, 39364), (16926, 37850), (18925, 33852), (19682, 32550), (20150, 31794), (21196, 30225), (21700, 29523), (22710, 28210), (23467, 27300), (24180, 26495)]