13047640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4129}}^1$

素因数の和:4219

約数の個数: 32

約数和(自身を含む): 29736000

約数和(自身を除く): 16688360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4129, 8258, 16516, 20645, 33032, 41290, 82580, 165160, 326191, 652382, 1304764, 1630955, 2609528, 3261910, 6523820, 13047640]

約数ペア:

[(1, 13047640), (2, 6523820), (4, 3261910), (5, 2609528), (8, 1630955), (10, 1304764), (20, 652382), (40, 326191), (79, 165160), (158, 82580), (316, 41290), (395, 33032), (632, 20645), (790, 16516), (1580, 8258), (3160, 4129)]