12859880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2657}}^1$

素因数の和:2690

約数の個数: 48

約数和(自身を含む): 31816260

約数和(自身を除く): 18956380

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 2657, 4840, 5314, 10628, 13285, 21256, 26570, 29227, 53140, 58454, 106280, 116908, 146135, 233816, 292270, 321497, 584540, 642994, 1169080, 1285988, 1607485, 2571976, 3214970, 6429940, 12859880]

約数ペア:

[(1, 12859880), (2, 6429940), (4, 3214970), (5, 2571976), (8, 1607485), (10, 1285988), (11, 1169080), (20, 642994), (22, 584540), (40, 321497), (44, 292270), (55, 233816), (88, 146135), (110, 116908), (121, 106280), (220, 58454), (242, 53140), (440, 29227), (484, 26570), (605, 21256), (968, 13285), (1210, 10628), (2420, 5314), (2657, 4840)]