18158890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 16677590

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 223, 446, 479, 958, 1115, 2230, 2395, 3791, 4790, 7582, 8143, 16286, 18955, 37910, 40715, 81430, 106817, 213634, 534085, 1068170, 1815889, 3631778, 9079445, 18158890]

約数ペア:

[(1, 18158890), (2, 9079445), (5, 3631778), (10, 1815889), (17, 1068170), (34, 534085), (85, 213634), (170, 106817), (223, 81430), (446, 40715), (479, 37910), (958, 18955), (1115, 16286), (2230, 8143), (2395, 7582), (3791, 4790)]