19960880

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4229}}^1$

素因数の和:4301

約数の個数: 40

約数和(自身を含む): 47206800

約数和(自身を除く): 27245920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4229, 4720, 8458, 16916, 21145, 33832, 42290, 67664, 84580, 169160, 249511, 338320, 499022, 998044, 1247555, 1996088, 2495110, 3992176, 4990220, 9980440, 19960880]

約数ペア:

[(1, 19960880), (2, 9980440), (4, 4990220), (5, 3992176), (8, 2495110), (10, 1996088), (16, 1247555), (20, 998044), (40, 499022), (59, 338320), (80, 249511), (118, 169160), (236, 84580), (295, 67664), (472, 42290), (590, 33832), (944, 21145), (1180, 16916), (2360, 8458), (4229, 4720)]