21665200

素因数分解:

$2^4\times 5^2\times {\mathrm{54163}}^1$

素因数の和:54181

約数の個数: 30

約数和(自身を含む): 52051604

約数和(自身を除く): 30386404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54163, 108326, 216652, 270815, 433304, 541630, 866608, 1083260, 1354075, 2166520, 2708150, 4333040, 5416300, 10832600, 21665200]

約数ペア:

[(1, 21665200), (2, 10832600), (4, 5416300), (5, 4333040), (8, 2708150), (10, 2166520), (16, 1354075), (20, 1083260), (25, 866608), (40, 541630), (50, 433304), (80, 270815), (100, 216652), (200, 108326), (400, 54163)]