1820291288

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{354971}}^1$

素因数の和:355618

約数の個数: 16

約数和(自身を含む): 3418380360

約数和(自身を除く): 1598089072

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 354971, 709942, 1419884, 2839768, 227536411, 455072822, 910145644, 1820291288]

約数ペア:

[(1, 1820291288), (2, 910145644), (4, 455072822), (8, 227536411), (641, 2839768), (1282, 1419884), (2564, 709942), (5128, 354971)]