12687640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 32996160

約数和(自身を除く): 20308520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 401, 452, 565, 791, 802, 904, 1130, 1582, 1604, 2005, 2260, 2807, 3164, 3208, 3955, 4010, 4520, 5614, 6328, 7910, 8020, 11228, 14035, 15820, 16040, 22456, 28070, 31640, 45313, 56140, 90626, 112280, 181252, 226565, 317191, 362504, 453130, 634382, 906260, 1268764, 1585955, 1812520, 2537528, 3171910, 6343820, 12687640]

約数ペア:

[(1, 12687640), (2, 6343820), (4, 3171910), (5, 2537528), (7, 1812520), (8, 1585955), (10, 1268764), (14, 906260), (20, 634382), (28, 453130), (35, 362504), (40, 317191), (56, 226565), (70, 181252), (113, 112280), (140, 90626), (226, 56140), (280, 45313), (401, 31640), (452, 28070), (565, 22456), (791, 16040), (802, 15820), (904, 14035), (1130, 11228), (1582, 8020), (1604, 7910), (2005, 6328), (2260, 5614), (2807, 4520), (3164, 4010), (3208, 3955)]