31997550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:358

約数の個数: 96

約数和(自身を含む): 87181920

約数和(自身を除く): 55184370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 61, 65, 75, 78, 122, 130, 150, 183, 195, 269, 305, 325, 366, 390, 538, 610, 650, 793, 807, 915, 975, 1345, 1525, 1586, 1614, 1830, 1950, 2379, 2690, 3050, 3497, 3965, 4035, 4575, 4758, 6725, 6994, 7930, 8070, 9150, 10491, 11895, 13450, 16409, 17485, 19825, 20175, 20982, 23790, 32818, 34970, 39650, 40350, 49227, 52455, 59475, 82045, 87425, 98454, 104910, 118950, 164090, 174850, 213317, 246135, 262275, 410225, 426634, 492270, 524550, 639951, 820450, 1066585, 1230675, 1279902, 2133170, 2461350, 3199755, 5332925, 6399510, 10665850, 15998775, 31997550]

約数ペア:

[(1, 31997550), (2, 15998775), (3, 10665850), (5, 6399510), (6, 5332925), (10, 3199755), (13, 2461350), (15, 2133170), (25, 1279902), (26, 1230675), (30, 1066585), (39, 820450), (50, 639951), (61, 524550), (65, 492270), (75, 426634), (78, 410225), (122, 262275), (130, 246135), (150, 213317), (183, 174850), (195, 164090), (269, 118950), (305, 104910), (325, 98454), (366, 87425), (390, 82045), (538, 59475), (610, 52455), (650, 49227), (793, 40350), (807, 39650), (915, 34970), (975, 32818), (1345, 23790), (1525, 20982), (1586, 20175), (1614, 19825), (1830, 17485), (1950, 16409), (2379, 13450), (2690, 11895), (3050, 10491), (3497, 9150), (3965, 8070), (4035, 7930), (4575, 6994), (4758, 6725)]