1618656640

素因数分解:

$2^7\times 5^1\times {\mathrm{2529151}}^1$

素因数の和:2529170

約数の個数: 32

約数和(自身を含む): 3869602560

約数和(自身を除く): 2250945920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2529151, 5058302, 10116604, 12645755, 20233208, 25291510, 40466416, 50583020, 80932832, 101166040, 161865664, 202332080, 323731328, 404664160, 809328320, 1618656640]

約数ペア:

[(1, 1618656640), (2, 809328320), (4, 404664160), (5, 323731328), (8, 202332080), (10, 161865664), (16, 101166040), (20, 80932832), (32, 50583020), (40, 40466416), (64, 25291510), (80, 20233208), (128, 12645755), (160, 10116604), (320, 5058302), (640, 2529151)]