1280270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{443}}^1$

素因数の和:484

約数の個数: 24

約数和(自身を含む): 2453544

約数和(自身を除く): 1173274

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 443, 578, 886, 1445, 2215, 2890, 4430, 7531, 15062, 37655, 75310, 128027, 256054, 640135, 1280270]

約数ペア:

[(1, 1280270), (2, 640135), (5, 256054), (10, 128027), (17, 75310), (34, 37655), (85, 15062), (170, 7531), (289, 4430), (443, 2890), (578, 2215), (886, 1445)]