18928160

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 44983512

約数和(自身を除く): 26055352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 421, 562, 842, 1124, 1405, 1684, 2105, 2248, 2810, 3368, 4210, 4496, 5620, 6736, 8420, 8992, 11240, 13472, 16840, 22480, 33680, 44960, 67360, 118301, 236602, 473204, 591505, 946408, 1183010, 1892816, 2366020, 3785632, 4732040, 9464080, 18928160]

約数ペア:

[(1, 18928160), (2, 9464080), (4, 4732040), (5, 3785632), (8, 2366020), (10, 1892816), (16, 1183010), (20, 946408), (32, 591505), (40, 473204), (80, 236602), (160, 118301), (281, 67360), (421, 44960), (562, 33680), (842, 22480), (1124, 16840), (1405, 13472), (1684, 11240), (2105, 8992), (2248, 8420), (2810, 6736), (3368, 5620), (4210, 4496)]