18001640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1151}}^1$

素因数の和:1202

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 26788120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1151, 1564, 1955, 2302, 3128, 3910, 4604, 5755, 7820, 9208, 11510, 15640, 19567, 23020, 26473, 39134, 46040, 52946, 78268, 97835, 105892, 132365, 156536, 195670, 211784, 264730, 391340, 450041, 529460, 782680, 900082, 1058920, 1800164, 2250205, 3600328, 4500410, 9000820, 18001640]

約数ペア:

[(1, 18001640), (2, 9000820), (4, 4500410), (5, 3600328), (8, 2250205), (10, 1800164), (17, 1058920), (20, 900082), (23, 782680), (34, 529460), (40, 450041), (46, 391340), (68, 264730), (85, 211784), (92, 195670), (115, 156536), (136, 132365), (170, 105892), (184, 97835), (230, 78268), (340, 52946), (391, 46040), (460, 39134), (680, 26473), (782, 23020), (920, 19567), (1151, 15640), (1564, 11510), (1955, 9208), (2302, 7820), (3128, 5755), (3910, 4604)]