15995920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2531}}^1$

素因数の和:2623

約数の個数: 40

約数和(自身を含む): 37676160

約数和(自身を除く): 21680240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2531, 3160, 5062, 6320, 10124, 12655, 20248, 25310, 40496, 50620, 101240, 199949, 202480, 399898, 799796, 999745, 1599592, 1999490, 3199184, 3998980, 7997960, 15995920]

約数ペア:

[(1, 15995920), (2, 7997960), (4, 3998980), (5, 3199184), (8, 1999490), (10, 1599592), (16, 999745), (20, 799796), (40, 399898), (79, 202480), (80, 199949), (158, 101240), (316, 50620), (395, 40496), (632, 25310), (790, 20248), (1264, 12655), (1580, 10124), (2531, 6320), (3160, 5062)]