16139920

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{881}}^1$

素因数の和:1123

約数の個数: 40

約数和(自身を含む): 37731960

約数和(自身を除く): 21592040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 881, 916, 1145, 1762, 1832, 2290, 3524, 3664, 4405, 4580, 7048, 8810, 9160, 14096, 17620, 18320, 35240, 70480, 201749, 403498, 806996, 1008745, 1613992, 2017490, 3227984, 4034980, 8069960, 16139920]

約数ペア:

[(1, 16139920), (2, 8069960), (4, 4034980), (5, 3227984), (8, 2017490), (10, 1613992), (16, 1008745), (20, 806996), (40, 403498), (80, 201749), (229, 70480), (458, 35240), (881, 18320), (916, 17620), (1145, 14096), (1762, 9160), (1832, 8810), (2290, 7048), (3524, 4580), (3664, 4405)]