278120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 664200

約数和(自身を除く): 386080

約数列:

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

約数ペア:

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