25450640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4027}}^1$

素因数の和:4119

約数の個数: 40

約数和(自身を含む): 59936640

約数和(自身を除く): 34486000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4027, 6320, 8054, 16108, 20135, 32216, 40270, 64432, 80540, 161080, 318133, 322160, 636266, 1272532, 1590665, 2545064, 3181330, 5090128, 6362660, 12725320, 25450640]

約数ペア:

[(1, 25450640), (2, 12725320), (4, 6362660), (5, 5090128), (8, 3181330), (10, 2545064), (16, 1590665), (20, 1272532), (40, 636266), (79, 322160), (80, 318133), (158, 161080), (316, 80540), (395, 64432), (632, 40270), (790, 32216), (1264, 20135), (1580, 16108), (3160, 8054), (4027, 6320)]