21552400

素因数分解:

$2^4\times 5^2\times {\mathrm{53881}}^1$

素因数の和:53899

約数の個数: 30

約数和(自身を含む): 51780602

約数和(自身を除く): 30228202

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53881, 107762, 215524, 269405, 431048, 538810, 862096, 1077620, 1347025, 2155240, 2694050, 4310480, 5388100, 10776200, 21552400]

約数ペア:

[(1, 21552400), (2, 10776200), (4, 5388100), (5, 4310480), (8, 2694050), (10, 2155240), (16, 1347025), (20, 1077620), (25, 862096), (40, 538810), (50, 431048), (80, 269405), (100, 215524), (200, 107762), (400, 53881)]