640463400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 288

約数和(自身を含む): 2308706400

約数和(自身を除く): 1668243000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 50, 57, 60, 61, 72, 75, 76, 90, 95, 100, 114, 120, 122, 150, 152, 171, 180, 183, 190, 200, 225, 228, 244, 285, 300, 305, 307, 342, 360, 366, 380, 450, 456, 475, 488, 549, 570, 600, 610, 614, 684, 732, 760, 855, 900, 915, 921, 950, 1098, 1140, 1159, 1220, 1228, 1368, 1425, 1464, 1525, 1535, 1710, 1800, 1830, 1842, 1900, 2196, 2280, 2318, 2440, 2456, 2745, 2763, 2850, 3050, 3070, 3420, 3477, 3660, 3684, 3800, 4275, 4392, 4575, 4605, 4636, 5490, 5526, 5700, 5795, 5833, 6100, 6140, 6840, 6954, 7320, 7368, 7675, 8550, 9150, 9210, 9272, 10431, 10980, 11052, 11400, 11590, 11666, 12200, 12280, 13725, 13815, 13908, 15350, 17100, 17385, 17499, 18300, 18420, 18727, 20862, 21960, 22104, 23025, 23180, 23332, 27450, 27630, 27816, 28975, 29165, 30700, 34200, 34770, 34998, 36600, 36840, 37454, 41724, 46050, 46360, 46664, 52155, 52497, 54900, 55260, 56181, 57950, 58330, 61400, 69075, 69540, 69996, 74908, 83448, 86925, 87495, 92100, 93635, 104310, 104994, 109800, 110520, 112362, 115900, 116660, 138150, 139080, 139992, 145825, 149816, 168543, 173850, 174990, 184200, 187270, 208620, 209988, 224724, 231800, 233320, 260775, 262485, 276300, 280905, 291650, 337086, 347700, 349980, 355813, 374540, 417240, 419976, 437475, 449448, 468175, 521550, 524970, 552600, 561810, 583300, 674172, 695400, 699960, 711626, 749080, 842715, 874950, 936350, 1043100, 1049940, 1067439, 1123620, 1166600, 1312425, 1348344, 1404525, 1423252, 1685430, 1749900, 1779065, 1872700, 2086200, 2099880, 2134878, 2247240, 2624850, 2809050, 2846504, 3202317, 3370860, 3499800, 3558130, 3745400, 4213575, 4269756, 5249700, 5337195, 5618100, 6404634, 6741720, 7116260, 8427150, 8539512, 8895325, 10499400, 10674390, 11236200, 12809268, 14232520, 16011585, 16854300, 17790650, 21348780, 25618536, 26685975, 32023170, 33708600, 35581300, 42697560, 53371950, 64046340, 71162600, 80057925, 106743900, 128092680, 160115850, 213487800, 320231700, 640463400]

約数ペア:

[(1, 640463400), (2, 320231700), (3, 213487800), (4, 160115850), (5, 128092680), (6, 106743900), (8, 80057925), (9, 71162600), (10, 64046340), (12, 53371950), (15, 42697560), (18, 35581300), (19, 33708600), (20, 32023170), (24, 26685975), (25, 25618536), (30, 21348780), (36, 17790650), (38, 16854300), (40, 16011585), (45, 14232520), (50, 12809268), (57, 11236200), (60, 10674390), (61, 10499400), (72, 8895325), (75, 8539512), (76, 8427150), (90, 7116260), (95, 6741720), (100, 6404634), (114, 5618100), (120, 5337195), (122, 5249700), (150, 4269756), (152, 4213575), (171, 3745400), (180, 3558130), (183, 3499800), (190, 3370860), (200, 3202317), (225, 2846504), (228, 2809050), (244, 2624850), (285, 2247240), (300, 2134878), (305, 2099880), (307, 2086200), (342, 1872700), (360, 1779065), (366, 1749900), (380, 1685430), (450, 1423252), (456, 1404525), (475, 1348344), (488, 1312425), (549, 1166600), (570, 1123620), (600, 1067439), (610, 1049940), (614, 1043100), (684, 936350), (732, 874950), (760, 842715), (855, 749080), (900, 711626), (915, 699960), (921, 695400), (950, 674172), (1098, 583300), (1140, 561810), (1159, 552600), (1220, 524970), (1228, 521550), (1368, 468175), (1425, 449448), (1464, 437475), (1525, 419976), (1535, 417240), (1710, 374540), (1800, 355813), (1830, 349980), (1842, 347700), (1900, 337086), (2196, 291650), (2280, 280905), (2318, 276300), (2440, 262485), (2456, 260775), (2745, 233320), (2763, 231800), (2850, 224724), (3050, 209988), (3070, 208620), (3420, 187270), (3477, 184200), (3660, 174990), (3684, 173850), (3800, 168543), (4275, 149816), (4392, 145825), (4575, 139992), (4605, 139080), (4636, 138150), (5490, 116660), (5526, 115900), (5700, 112362), (5795, 110520), (5833, 109800), (6100, 104994), (6140, 104310), (6840, 93635), (6954, 92100), (7320, 87495), (7368, 86925), (7675, 83448), (8550, 74908), (9150, 69996), (9210, 69540), (9272, 69075), (10431, 61400), (10980, 58330), (11052, 57950), (11400, 56181), (11590, 55260), (11666, 54900), (12200, 52497), (12280, 52155), (13725, 46664), (13815, 46360), (13908, 46050), (15350, 41724), (17100, 37454), (17385, 36840), (17499, 36600), (18300, 34998), (18420, 34770), (18727, 34200), (20862, 30700), (21960, 29165), (22104, 28975), (23025, 27816), (23180, 27630), (23332, 27450)]