659631740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{2099}}^1$

素因数の和:2954

約数の個数: 48

約数和(自身を含む): 1460592000

約数和(自身を除く): 800960260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 827, 1654, 2099, 3308, 4135, 4198, 8270, 8396, 10495, 15713, 16540, 20990, 31426, 39881, 41980, 62852, 78565, 79762, 157130, 159524, 199405, 314260, 398810, 797620, 1735873, 3471746, 6943492, 8679365, 17358730, 32981587, 34717460, 65963174, 131926348, 164907935, 329815870, 659631740]

約数ペア:

[(1, 659631740), (2, 329815870), (4, 164907935), (5, 131926348), (10, 65963174), (19, 34717460), (20, 32981587), (38, 17358730), (76, 8679365), (95, 6943492), (190, 3471746), (380, 1735873), (827, 797620), (1654, 398810), (2099, 314260), (3308, 199405), (4135, 159524), (4198, 157130), (8270, 79762), (8396, 78565), (10495, 62852), (15713, 41980), (16540, 39881), (20990, 31426)]