20173161640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1\times {\mathrm{14423}}^1$

素因数の和:14986

約数の個数: 64

約数和(自身を含む): 46110643200

約数和(自身を除く): 25937481560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 479, 584, 730, 958, 1460, 1916, 2395, 2920, 3832, 4790, 9580, 14423, 19160, 28846, 34967, 57692, 69934, 72115, 115384, 139868, 144230, 174835, 279736, 288460, 349670, 576920, 699340, 1052879, 1398680, 2105758, 4211516, 5264395, 6908617, 8423032, 10528790, 13817234, 21057580, 27634468, 34543085, 42115160, 55268936, 69086170, 138172340, 276344680, 504329041, 1008658082, 2017316164, 2521645205, 4034632328, 5043290410, 10086580820, 20173161640]

約数ペア:

[(1, 20173161640), (2, 10086580820), (4, 5043290410), (5, 4034632328), (8, 2521645205), (10, 2017316164), (20, 1008658082), (40, 504329041), (73, 276344680), (146, 138172340), (292, 69086170), (365, 55268936), (479, 42115160), (584, 34543085), (730, 27634468), (958, 21057580), (1460, 13817234), (1916, 10528790), (2395, 8423032), (2920, 6908617), (3832, 5264395), (4790, 4211516), (9580, 2105758), (14423, 1398680), (19160, 1052879), (28846, 699340), (34967, 576920), (57692, 349670), (69934, 288460), (72115, 279736), (115384, 174835), (139868, 144230)]