20121581618

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{967}}^1$

素因数の和:1263

約数の個数: 64

約数和(自身を含む): 32918814720

約数和(自身を除く): 12797233102

約数列:

[1, 2, 29, 31, 58, 62, 71, 142, 163, 326, 899, 967, 1798, 1934, 2059, 2201, 4118, 4402, 4727, 5053, 9454, 10106, 11573, 23146, 28043, 29977, 56086, 59954, 63829, 68657, 127658, 137314, 146537, 157621, 293074, 315242, 335617, 358763, 671234, 717526, 869333, 1738666, 1991053, 2128367, 3982106, 4256734, 4571009, 4886251, 9142018, 9772502, 10404127, 11191091, 20808254, 22382182, 61722643, 123445286, 141701279, 283402558, 324541639, 346923821, 649083278, 693847642, 10060790809, 20121581618]

約数ペア:

[(1, 20121581618), (2, 10060790809), (29, 693847642), (31, 649083278), (58, 346923821), (62, 324541639), (71, 283402558), (142, 141701279), (163, 123445286), (326, 61722643), (899, 22382182), (967, 20808254), (1798, 11191091), (1934, 10404127), (2059, 9772502), (2201, 9142018), (4118, 4886251), (4402, 4571009), (4727, 4256734), (5053, 3982106), (9454, 2128367), (10106, 1991053), (11573, 1738666), (23146, 869333), (28043, 717526), (29977, 671234), (56086, 358763), (59954, 335617), (63829, 315242), (68657, 293074), (127658, 157621), (137314, 146537)]