25721870

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 47541600

約数和(自身を除く): 21819730

約数列:

[1, 2, 5, 10, 61, 122, 149, 283, 298, 305, 566, 610, 745, 1415, 1490, 2830, 9089, 17263, 18178, 34526, 42167, 45445, 84334, 86315, 90890, 172630, 210835, 421670, 2572187, 5144374, 12860935, 25721870]

約数ペア:

[(1, 25721870), (2, 12860935), (5, 5144374), (10, 2572187), (61, 421670), (122, 210835), (149, 172630), (283, 90890), (298, 86315), (305, 84334), (566, 45445), (610, 42167), (745, 34526), (1415, 18178), (1490, 17263), (2830, 9089)]