25617880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3251}}^1$

素因数の和:3459

約数の個数: 32

約数和(自身を含む): 57950640

約数和(自身を除く): 32332760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3251, 3940, 6502, 7880, 13004, 16255, 26008, 32510, 65020, 130040, 640447, 1280894, 2561788, 3202235, 5123576, 6404470, 12808940, 25617880]

約数ペア:

[(1, 25617880), (2, 12808940), (4, 6404470), (5, 5123576), (8, 3202235), (10, 2561788), (20, 1280894), (40, 640447), (197, 130040), (394, 65020), (788, 32510), (985, 26008), (1576, 16255), (1970, 13004), (3251, 7880), (3940, 6502)]