25940440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8209}}^1$

素因数の和:8299

約数の個数: 32

約数和(自身を含む): 59112000

約数和(自身を除く): 33171560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 8209, 16418, 32836, 41045, 65672, 82090, 164180, 328360, 648511, 1297022, 2594044, 3242555, 5188088, 6485110, 12970220, 25940440]

約数ペア:

[(1, 25940440), (2, 12970220), (4, 6485110), (5, 5188088), (8, 3242555), (10, 2594044), (20, 1297022), (40, 648511), (79, 328360), (158, 164180), (316, 82090), (395, 65672), (632, 41045), (790, 32836), (1580, 16418), (3160, 8209)]