19531640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28723}}^1$

素因数の和:28751

約数の個数: 32

約数和(自身を含む): 46532880

約数和(自身を除く): 27001240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28723, 57446, 114892, 143615, 229784, 287230, 488291, 574460, 976582, 1148920, 1953164, 2441455, 3906328, 4882910, 9765820, 19531640]

約数ペア:

[(1, 19531640), (2, 9765820), (4, 4882910), (5, 3906328), (8, 2441455), (10, 1953164), (17, 1148920), (20, 976582), (34, 574460), (40, 488291), (68, 287230), (85, 229784), (136, 143615), (170, 114892), (340, 57446), (680, 28723)]