28690390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2377}}^1$

素因数の和:2472

約数の個数: 32

約数和(自身を含む): 55473984

約数和(自身を除く): 26783594

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 2377, 2414, 4754, 6035, 11885, 12070, 23770, 40409, 80818, 168767, 202045, 337534, 404090, 843835, 1687670, 2869039, 5738078, 14345195, 28690390]

約数ペア:

[(1, 28690390), (2, 14345195), (5, 5738078), (10, 2869039), (17, 1687670), (34, 843835), (71, 404090), (85, 337534), (142, 202045), (170, 168767), (355, 80818), (710, 40409), (1207, 23770), (2377, 12070), (2414, 11885), (4754, 6035)]