17581240

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1049}}^1$

素因数の和:1479

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 22108760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1049, 1676, 2095, 2098, 3352, 4190, 4196, 5245, 8380, 8392, 10490, 16760, 20980, 41960, 439531, 879062, 1758124, 2197655, 3516248, 4395310, 8790620, 17581240]

約数ペア:

[(1, 17581240), (2, 8790620), (4, 4395310), (5, 3516248), (8, 2197655), (10, 1758124), (20, 879062), (40, 439531), (419, 41960), (838, 20980), (1049, 16760), (1676, 10490), (2095, 8392), (2098, 8380), (3352, 5245), (4190, 4196)]