31121220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2347}}^1$

素因数の和:2389

約数の個数: 96

約数和(自身を含む): 99404928

約数和(自身を除く): 68283708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2347, 2652, 3315, 4420, 4694, 6630, 7041, 9388, 11735, 13260, 14082, 23470, 28164, 30511, 35205, 39899, 46940, 61022, 70410, 79798, 91533, 119697, 122044, 140820, 152555, 159596, 183066, 199495, 239394, 305110, 366132, 398990, 457665, 478788, 518687, 598485, 610220, 797980, 915330, 1037374, 1196970, 1556061, 1830660, 2074748, 2393940, 2593435, 3112122, 5186870, 6224244, 7780305, 10373740, 15560610, 31121220]

約数ペア:

[(1, 31121220), (2, 15560610), (3, 10373740), (4, 7780305), (5, 6224244), (6, 5186870), (10, 3112122), (12, 2593435), (13, 2393940), (15, 2074748), (17, 1830660), (20, 1556061), (26, 1196970), (30, 1037374), (34, 915330), (39, 797980), (51, 610220), (52, 598485), (60, 518687), (65, 478788), (68, 457665), (78, 398990), (85, 366132), (102, 305110), (130, 239394), (156, 199495), (170, 183066), (195, 159596), (204, 152555), (221, 140820), (255, 122044), (260, 119697), (340, 91533), (390, 79798), (442, 70410), (510, 61022), (663, 46940), (780, 39899), (884, 35205), (1020, 30511), (1105, 28164), (1326, 23470), (2210, 14082), (2347, 13260), (2652, 11735), (3315, 9388), (4420, 7041), (4694, 6630)]