18083560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 45074880

約数和(自身を除く): 26991320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 563, 584, 730, 803, 1126, 1460, 1606, 2252, 2815, 2920, 3212, 4015, 4504, 5630, 6193, 6424, 8030, 11260, 12386, 16060, 22520, 24772, 30965, 32120, 41099, 49544, 61930, 82198, 123860, 164396, 205495, 247720, 328792, 410990, 452089, 821980, 904178, 1643960, 1808356, 2260445, 3616712, 4520890, 9041780, 18083560]

約数ペア:

[(1, 18083560), (2, 9041780), (4, 4520890), (5, 3616712), (8, 2260445), (10, 1808356), (11, 1643960), (20, 904178), (22, 821980), (40, 452089), (44, 410990), (55, 328792), (73, 247720), (88, 205495), (110, 164396), (146, 123860), (220, 82198), (292, 61930), (365, 49544), (440, 41099), (563, 32120), (584, 30965), (730, 24772), (803, 22520), (1126, 16060), (1460, 12386), (1606, 11260), (2252, 8030), (2815, 6424), (2920, 6193), (3212, 5630), (4015, 4504)]