7842640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7541}}^1$

素因数の和:7567

約数の個数: 40

約数和(自身を含む): 19639368

約数和(自身を除く): 11796728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7541, 15082, 30164, 37705, 60328, 75410, 98033, 120656, 150820, 196066, 301640, 392132, 490165, 603280, 784264, 980330, 1568528, 1960660, 3921320, 7842640]

約数ペア:

[(1, 7842640), (2, 3921320), (4, 1960660), (5, 1568528), (8, 980330), (10, 784264), (13, 603280), (16, 490165), (20, 392132), (26, 301640), (40, 196066), (52, 150820), (65, 120656), (80, 98033), (104, 75410), (130, 60328), (208, 37705), (260, 30164), (520, 15082), (1040, 7541)]