131820400

素因数分解:

$2^4\times 5^2\times {\mathrm{329551}}^1$

素因数の和:329569

約数の個数: 30

約数和(自身を含む): 316699472

約数和(自身を除く): 184879072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 329551, 659102, 1318204, 1647755, 2636408, 3295510, 5272816, 6591020, 8238775, 13182040, 16477550, 26364080, 32955100, 65910200, 131820400]

約数ペア:

[(1, 131820400), (2, 65910200), (4, 32955100), (5, 26364080), (8, 16477550), (10, 13182040), (16, 8238775), (20, 6591020), (25, 5272816), (40, 3295510), (50, 2636408), (80, 1647755), (100, 1318204), (200, 659102), (400, 329551)]