813308840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{549533}}^1$

素因数の和:549581

約数の個数: 32

約数和(自身を含む): 1879406280

約数和(自身を除く): 1066097440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 549533, 1099066, 2198132, 2747665, 4396264, 5495330, 10990660, 20332721, 21981320, 40665442, 81330884, 101663605, 162661768, 203327210, 406654420, 813308840]

約数ペア:

[(1, 813308840), (2, 406654420), (4, 203327210), (5, 162661768), (8, 101663605), (10, 81330884), (20, 40665442), (37, 21981320), (40, 20332721), (74, 10990660), (148, 5495330), (185, 4396264), (296, 2747665), (370, 2198132), (740, 1099066), (1480, 549533)]