351292120

素因数分解:

$2^3\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{5281}}^1$

素因数の和:6955

約数の個数: 32

約数和(自身を含む): 791032320

約数和(自身を除く): 439740200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1663, 3326, 5281, 6652, 8315, 10562, 13304, 16630, 21124, 26405, 33260, 42248, 52810, 66520, 105620, 211240, 8782303, 17564606, 35129212, 43911515, 70258424, 87823030, 175646060, 351292120]

約数ペア:

[(1, 351292120), (2, 175646060), (4, 87823030), (5, 70258424), (8, 43911515), (10, 35129212), (20, 17564606), (40, 8782303), (1663, 211240), (3326, 105620), (5281, 66520), (6652, 52810), (8315, 42248), (10562, 33260), (13304, 26405), (16630, 21124)]