18880810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{467}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 36796032

約数和(自身を除く): 17915222

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 467, 622, 934, 1555, 2335, 3110, 4043, 4670, 6071, 8086, 12142, 20215, 30355, 40430, 60710, 145237, 290474, 726185, 1452370, 1888081, 3776162, 9440405, 18880810]

約数ペア:

[(1, 18880810), (2, 9440405), (5, 3776162), (10, 1888081), (13, 1452370), (26, 726185), (65, 290474), (130, 145237), (311, 60710), (467, 40430), (622, 30355), (934, 20215), (1555, 12142), (2335, 8086), (3110, 6071), (4043, 4670)]