4200400

素因数分解:

$2^4\times 5^2\times {\mathrm{10501}}^1$

素因数の和:10519

約数の個数: 30

約数和(自身を含む): 10092422

約数和(自身を除く): 5892022

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 10501, 21002, 42004, 52505, 84008, 105010, 168016, 210020, 262525, 420040, 525050, 840080, 1050100, 2100200, 4200400]

約数ペア:

[(1, 4200400), (2, 2100200), (4, 1050100), (5, 840080), (8, 525050), (10, 420040), (16, 262525), (20, 210020), (25, 168016), (40, 105010), (50, 84008), (80, 52505), (100, 42004), (200, 21002), (400, 10501)]