155511640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{24763}}^1$

素因数の和:24931

約数の個数: 32

約数和(自身を含む): 352144080

約数和(自身を除く): 196632440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 24763, 49526, 99052, 123815, 198104, 247630, 495260, 990520, 3887791, 7775582, 15551164, 19438955, 31102328, 38877910, 77755820, 155511640]

約数ペア:

[(1, 155511640), (2, 77755820), (4, 38877910), (5, 31102328), (8, 19438955), (10, 15551164), (20, 7775582), (40, 3887791), (157, 990520), (314, 495260), (628, 247630), (785, 198104), (1256, 123815), (1570, 99052), (3140, 49526), (6280, 24763)]