19501640

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2129}}^1$

素因数の和:2369

約数の個数: 32

約数和(自身を含む): 44091000

約数和(自身を除く): 24589360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2129, 2290, 4258, 4580, 8516, 9160, 10645, 17032, 21290, 42580, 85160, 487541, 975082, 1950164, 2437705, 3900328, 4875410, 9750820, 19501640]

約数ペア:

[(1, 19501640), (2, 9750820), (4, 4875410), (5, 3900328), (8, 2437705), (10, 1950164), (20, 975082), (40, 487541), (229, 85160), (458, 42580), (916, 21290), (1145, 17032), (1832, 10645), (2129, 9160), (2290, 8516), (4258, 4580)]