181672120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2309}}^1$

素因数の和:2608

約数の個数: 64

約数和(自身を含む): 469022400

約数和(自身を除く): 287350280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 1124, 1405, 1967, 2248, 2309, 2810, 3934, 4618, 5620, 7868, 9236, 9835, 11240, 11545, 15736, 16163, 18472, 19670, 23090, 32326, 39340, 46180, 64652, 78680, 80815, 92360, 129304, 161630, 323260, 646520, 648829, 1297658, 2595316, 3244145, 4541803, 5190632, 6488290, 9083606, 12976580, 18167212, 22709015, 25953160, 36334424, 45418030, 90836060, 181672120]

約数ペア:

[(1, 181672120), (2, 90836060), (4, 45418030), (5, 36334424), (7, 25953160), (8, 22709015), (10, 18167212), (14, 12976580), (20, 9083606), (28, 6488290), (35, 5190632), (40, 4541803), (56, 3244145), (70, 2595316), (140, 1297658), (280, 648829), (281, 646520), (562, 323260), (1124, 161630), (1405, 129304), (1967, 92360), (2248, 80815), (2309, 78680), (2810, 64652), (3934, 46180), (4618, 39340), (5620, 32326), (7868, 23090), (9236, 19670), (9835, 18472), (11240, 16163), (11545, 15736)]