556240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 1372680

約数和(自身を除く): 816440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 409, 680, 818, 1360, 1636, 2045, 3272, 4090, 6544, 6953, 8180, 13906, 16360, 27812, 32720, 34765, 55624, 69530, 111248, 139060, 278120, 556240]

約数ペア:

[(1, 556240), (2, 278120), (4, 139060), (5, 111248), (8, 69530), (10, 55624), (16, 34765), (17, 32720), (20, 27812), (34, 16360), (40, 13906), (68, 8180), (80, 6953), (85, 6544), (136, 4090), (170, 3272), (272, 2045), (340, 1636), (409, 1360), (680, 818)]