638060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 1364496

約数和(自身を除く): 726436

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 523, 610, 1046, 1220, 2092, 2615, 5230, 10460, 31903, 63806, 127612, 159515, 319030, 638060]

約数ペア:

[(1, 638060), (2, 319030), (4, 159515), (5, 127612), (10, 63806), (20, 31903), (61, 10460), (122, 5230), (244, 2615), (305, 2092), (523, 1220), (610, 1046)]