420712890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:464

約数の個数: 128

約数和(自身を含む): 1130879232

約数和(自身を除く): 710166342

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 41, 65, 78, 82, 83, 123, 130, 166, 195, 205, 246, 249, 317, 390, 410, 415, 498, 533, 615, 634, 830, 951, 1066, 1079, 1230, 1245, 1585, 1599, 1902, 2158, 2490, 2665, 3170, 3198, 3237, 3403, 4121, 4755, 5330, 5395, 6474, 6806, 7995, 8242, 9510, 10209, 10790, 12363, 12997, 15990, 16185, 17015, 20418, 20605, 24726, 25994, 26311, 32370, 34030, 38991, 41210, 44239, 51045, 52622, 61815, 64985, 77982, 78933, 88478, 102090, 123630, 129970, 131555, 132717, 157866, 168961, 194955, 221195, 263110, 265434, 337922, 342043, 389910, 394665, 442390, 506883, 663585, 684086, 789330, 844805, 1013766, 1026129, 1078751, 1327170, 1689610, 1710215, 2052258, 2157502, 2534415, 3236253, 3420430, 5068830, 5130645, 5393755, 6472506, 10261290, 10787510, 14023763, 16181265, 28047526, 32362530, 42071289, 70118815, 84142578, 140237630, 210356445, 420712890]

約数ペア:

[(1, 420712890), (2, 210356445), (3, 140237630), (5, 84142578), (6, 70118815), (10, 42071289), (13, 32362530), (15, 28047526), (26, 16181265), (30, 14023763), (39, 10787510), (41, 10261290), (65, 6472506), (78, 5393755), (82, 5130645), (83, 5068830), (123, 3420430), (130, 3236253), (166, 2534415), (195, 2157502), (205, 2052258), (246, 1710215), (249, 1689610), (317, 1327170), (390, 1078751), (410, 1026129), (415, 1013766), (498, 844805), (533, 789330), (615, 684086), (634, 663585), (830, 506883), (951, 442390), (1066, 394665), (1079, 389910), (1230, 342043), (1245, 337922), (1585, 265434), (1599, 263110), (1902, 221195), (2158, 194955), (2490, 168961), (2665, 157866), (3170, 132717), (3198, 131555), (3237, 129970), (3403, 123630), (4121, 102090), (4755, 88478), (5330, 78933), (5395, 77982), (6474, 64985), (6806, 61815), (7995, 52622), (8242, 51045), (9510, 44239), (10209, 41210), (10790, 38991), (12363, 34030), (12997, 32370), (15990, 26311), (16185, 25994), (17015, 24726), (20418, 20605)]