12405140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 28728000

約数和(自身を除く): 16322860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 499, 565, 998, 1130, 1243, 1996, 2260, 2486, 2495, 4972, 4990, 5489, 6215, 9980, 10978, 12430, 21956, 24860, 27445, 54890, 56387, 109780, 112774, 225548, 281935, 563870, 620257, 1127740, 1240514, 2481028, 3101285, 6202570, 12405140]

約数ペア:

[(1, 12405140), (2, 6202570), (4, 3101285), (5, 2481028), (10, 1240514), (11, 1127740), (20, 620257), (22, 563870), (44, 281935), (55, 225548), (110, 112774), (113, 109780), (220, 56387), (226, 54890), (452, 27445), (499, 24860), (565, 21956), (998, 12430), (1130, 10978), (1243, 9980), (1996, 6215), (2260, 5489), (2486, 4990), (2495, 4972)]