15664120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4957}}^1$

素因数の和:5047

約数の個数: 32

約数和(自身を含む): 35697600

約数和(自身を除く): 20033480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4957, 9914, 19828, 24785, 39656, 49570, 99140, 198280, 391603, 783206, 1566412, 1958015, 3132824, 3916030, 7832060, 15664120]

約数ペア:

[(1, 15664120), (2, 7832060), (4, 3916030), (5, 3132824), (8, 1958015), (10, 1566412), (20, 783206), (40, 391603), (79, 198280), (158, 99140), (316, 49570), (395, 39656), (632, 24785), (790, 19828), (1580, 9914), (3160, 4957)]