19467680

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{433}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 46262664

約数和(自身を除く): 26794984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 433, 562, 866, 1124, 1405, 1732, 2165, 2248, 2810, 3464, 4330, 4496, 5620, 6928, 8660, 8992, 11240, 13856, 17320, 22480, 34640, 44960, 69280, 121673, 243346, 486692, 608365, 973384, 1216730, 1946768, 2433460, 3893536, 4866920, 9733840, 19467680]

約数ペア:

[(1, 19467680), (2, 9733840), (4, 4866920), (5, 3893536), (8, 2433460), (10, 1946768), (16, 1216730), (20, 973384), (32, 608365), (40, 486692), (80, 243346), (160, 121673), (281, 69280), (433, 44960), (562, 34640), (866, 22480), (1124, 17320), (1405, 13856), (1732, 11240), (2165, 8992), (2248, 8660), (2810, 6928), (3464, 5620), (4330, 4496)]