2560540

素因数分解:

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

素因数の和:486

約数の個数: 36

約数和(自身を含む): 5724936

約数和(自身を除く): 3164396

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 443, 578, 886, 1156, 1445, 1772, 2215, 2890, 4430, 5780, 7531, 8860, 15062, 30124, 37655, 75310, 128027, 150620, 256054, 512108, 640135, 1280270, 2560540]

約数ペア:

[(1, 2560540), (2, 1280270), (4, 640135), (5, 512108), (10, 256054), (17, 150620), (20, 128027), (34, 75310), (68, 37655), (85, 30124), (170, 15062), (289, 8860), (340, 7531), (443, 5780), (578, 4430), (886, 2890), (1156, 2215), (1445, 1772)]