13189840

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2087}}^1$

素因数の和:2179

約数の個数: 40

約数和(自身を含む): 31069440

約数和(自身を除く): 17879600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2087, 3160, 4174, 6320, 8348, 10435, 16696, 20870, 33392, 41740, 83480, 164873, 166960, 329746, 659492, 824365, 1318984, 1648730, 2637968, 3297460, 6594920, 13189840]

約数ペア:

[(1, 13189840), (2, 6594920), (4, 3297460), (5, 2637968), (8, 1648730), (10, 1318984), (16, 824365), (20, 659492), (40, 329746), (79, 166960), (80, 164873), (158, 83480), (316, 41740), (395, 33392), (632, 20870), (790, 16696), (1264, 10435), (1580, 8348), (2087, 6320), (3160, 4174)]