15201980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18539}}^1$

素因数の和:18589

約数の個数: 24

約数和(自身を含む): 32704560

約数和(自身を除く): 17502580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 18539, 37078, 74156, 92695, 185390, 370780, 760099, 1520198, 3040396, 3800495, 7600990, 15201980]

約数ペア:

[(1, 15201980), (2, 7600990), (4, 3800495), (5, 3040396), (10, 1520198), (20, 760099), (41, 370780), (82, 185390), (164, 92695), (205, 74156), (410, 37078), (820, 18539)]