15718120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 39009600

約数和(自身を除く): 23291480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 257, 278, 440, 514, 556, 695, 1028, 1112, 1285, 1390, 1529, 2056, 2570, 2780, 2827, 3058, 5140, 5560, 5654, 6116, 7645, 10280, 11308, 12232, 14135, 15290, 22616, 28270, 30580, 35723, 56540, 61160, 71446, 113080, 142892, 178615, 285784, 357230, 392953, 714460, 785906, 1428920, 1571812, 1964765, 3143624, 3929530, 7859060, 15718120]

約数ペア:

[(1, 15718120), (2, 7859060), (4, 3929530), (5, 3143624), (8, 1964765), (10, 1571812), (11, 1428920), (20, 785906), (22, 714460), (40, 392953), (44, 357230), (55, 285784), (88, 178615), (110, 142892), (139, 113080), (220, 71446), (257, 61160), (278, 56540), (440, 35723), (514, 30580), (556, 28270), (695, 22616), (1028, 15290), (1112, 14135), (1285, 12232), (1390, 11308), (1529, 10280), (2056, 7645), (2570, 6116), (2780, 5654), (2827, 5560), (3058, 5140)]