19875730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9791}}^1$

素因数の和:9834

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 22425710

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 9791, 19582, 48955, 68537, 97910, 137074, 283939, 342685, 567878, 685370, 1419695, 1987573, 2839390, 3975146, 9937865, 19875730]

約数ペア:

[(1, 19875730), (2, 9937865), (5, 3975146), (7, 2839390), (10, 1987573), (14, 1419695), (29, 685370), (35, 567878), (58, 342685), (70, 283939), (145, 137074), (203, 97910), (290, 68537), (406, 48955), (1015, 19582), (2030, 9791)]