201991425

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{62633}}^1$

素因数の和:62689

約数の個数: 24

約数和(自身を含む): 341731104

約数和(自身を除く): 139739679

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 62633, 187899, 313165, 939495, 1565825, 2693219, 4697475, 8079657, 13466095, 40398285, 67330475, 201991425]

約数ペア:

[(1, 201991425), (3, 67330475), (5, 40398285), (15, 13466095), (25, 8079657), (43, 4697475), (75, 2693219), (129, 1565825), (215, 939495), (645, 313165), (1075, 187899), (3225, 62633)]