201760040

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{11981}}^1$

素因数の和:12413

約数の個数: 32

約数和(自身を含む): 455076360

約数和(自身を除く): 253316320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 11981, 16840, 23962, 47924, 59905, 95848, 119810, 239620, 479240, 5044001, 10088002, 20176004, 25220005, 40352008, 50440010, 100880020, 201760040]

約数ペア:

[(1, 201760040), (2, 100880020), (4, 50440010), (5, 40352008), (8, 25220005), (10, 20176004), (20, 10088002), (40, 5044001), (421, 479240), (842, 239620), (1684, 119810), (2105, 95848), (3368, 59905), (4210, 47924), (8420, 23962), (11981, 16840)]