123640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 304560

約数和(自身を除く): 180920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 281, 440, 562, 1124, 1405, 2248, 2810, 3091, 5620, 6182, 11240, 12364, 15455, 24728, 30910, 61820, 123640]

約数ペア:

[(1, 123640), (2, 61820), (4, 30910), (5, 24728), (8, 15455), (10, 12364), (11, 11240), (20, 6182), (22, 5620), (40, 3091), (44, 2810), (55, 2248), (88, 1405), (110, 1124), (220, 562), (281, 440)]