20666100

素因数分解:

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

素因数の和:794

約数の個数: 144

約数和(自身を含む): 73689728

約数和(自身を除く): 53023628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 700, 757, 780, 910, 975, 1050, 1092, 1300, 1365, 1514, 1820, 1950, 2100, 2271, 2275, 2730, 3028, 3785, 3900, 4542, 4550, 5299, 5460, 6825, 7570, 9084, 9100, 9841, 10598, 11355, 13650, 15140, 15897, 18925, 19682, 21196, 22710, 26495, 27300, 29523, 31794, 37850, 39364, 45420, 49205, 52990, 56775, 59046, 63588, 68887, 75700, 79485, 98410, 105980, 113550, 118092, 132475, 137774, 147615, 158970, 196820, 206661, 227100, 246025, 264950, 275548, 295230, 317940, 344435, 397425, 413322, 492050, 529900, 590460, 688870, 738075, 794850, 826644, 984100, 1033305, 1377740, 1476150, 1589700, 1722175, 2066610, 2952300, 3444350, 4133220, 5166525, 6888700, 10333050, 20666100]

約数ペア:

[(1, 20666100), (2, 10333050), (3, 6888700), (4, 5166525), (5, 4133220), (6, 3444350), (7, 2952300), (10, 2066610), (12, 1722175), (13, 1589700), (14, 1476150), (15, 1377740), (20, 1033305), (21, 984100), (25, 826644), (26, 794850), (28, 738075), (30, 688870), (35, 590460), (39, 529900), (42, 492050), (50, 413322), (52, 397425), (60, 344435), (65, 317940), (70, 295230), (75, 275548), (78, 264950), (84, 246025), (91, 227100), (100, 206661), (105, 196820), (130, 158970), (140, 147615), (150, 137774), (156, 132475), (175, 118092), (182, 113550), (195, 105980), (210, 98410), (260, 79485), (273, 75700), (300, 68887), (325, 63588), (350, 59046), (364, 56775), (390, 52990), (420, 49205), (455, 45420), (525, 39364), (546, 37850), (650, 31794), (700, 29523), (757, 27300), (780, 26495), (910, 22710), (975, 21196), (1050, 19682), (1092, 18925), (1300, 15897), (1365, 15140), (1514, 13650), (1820, 11355), (1950, 10598), (2100, 9841), (2271, 9100), (2275, 9084), (2730, 7570), (3028, 6825), (3785, 5460), (3900, 5299), (4542, 4550)]