25901440

素因数分解:

$2^7\times 5^1\times {\mathrm{40471}}^1$

素因数の和:40490

約数の個数: 32

約数和(自身を含む): 61922160

約数和(自身を除く): 36020720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40471, 80942, 161884, 202355, 323768, 404710, 647536, 809420, 1295072, 1618840, 2590144, 3237680, 5180288, 6475360, 12950720, 25901440]

約数ペア:

[(1, 25901440), (2, 12950720), (4, 6475360), (5, 5180288), (8, 3237680), (10, 2590144), (16, 1618840), (20, 1295072), (32, 809420), (40, 647536), (64, 404710), (80, 323768), (128, 202355), (160, 161884), (320, 80942), (640, 40471)]