81870400

素因数分解:

$2^6\times 5^2\times {\mathrm{51169}}^1$

素因数の和:51191

約数の個数: 42

約数和(自身を含む): 201456290

約数和(自身を除く): 119585890

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 51169, 102338, 204676, 255845, 409352, 511690, 818704, 1023380, 1279225, 1637408, 2046760, 2558450, 3274816, 4093520, 5116900, 8187040, 10233800, 16374080, 20467600, 40935200, 81870400]

約数ペア:

[(1, 81870400), (2, 40935200), (4, 20467600), (5, 16374080), (8, 10233800), (10, 8187040), (16, 5116900), (20, 4093520), (25, 3274816), (32, 2558450), (40, 2046760), (50, 1637408), (64, 1279225), (80, 1023380), (100, 818704), (160, 511690), (200, 409352), (320, 255845), (400, 204676), (800, 102338), (1600, 51169)]