20457470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 42690240

約数和(自身を除く): 22232770

約数列:

[1, 2, 5, 10, 11, 22, 29, 53, 55, 58, 106, 110, 121, 145, 242, 265, 290, 319, 530, 583, 605, 638, 1166, 1210, 1331, 1537, 1595, 2662, 2915, 3074, 3190, 3509, 5830, 6413, 6655, 7018, 7685, 12826, 13310, 15370, 16907, 17545, 32065, 33814, 35090, 38599, 64130, 70543, 77198, 84535, 141086, 169070, 185977, 192995, 352715, 371954, 385990, 705430, 929885, 1859770, 2045747, 4091494, 10228735, 20457470]

約数ペア:

[(1, 20457470), (2, 10228735), (5, 4091494), (10, 2045747), (11, 1859770), (22, 929885), (29, 705430), (53, 385990), (55, 371954), (58, 352715), (106, 192995), (110, 185977), (121, 169070), (145, 141086), (242, 84535), (265, 77198), (290, 70543), (319, 64130), (530, 38599), (583, 35090), (605, 33814), (638, 32065), (1166, 17545), (1210, 16907), (1331, 15370), (1537, 13310), (1595, 12826), (2662, 7685), (2915, 7018), (3074, 6655), (3190, 6413), (3509, 5830)]