1641320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 3796200

約数和(自身を除く): 2154880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1109, 1480, 2218, 4436, 5545, 8872, 11090, 22180, 41033, 44360, 82066, 164132, 205165, 328264, 410330, 820660, 1641320]

約数ペア:

[(1, 1641320), (2, 820660), (4, 410330), (5, 328264), (8, 205165), (10, 164132), (20, 82066), (37, 44360), (40, 41033), (74, 22180), (148, 11090), (185, 8872), (296, 5545), (370, 4436), (740, 2218), (1109, 1480)]