80782840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{54583}}^1$

素因数の和:54631

約数の個数: 32

約数和(自身を含む): 186677280

約数和(自身を除く): 105894440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 54583, 109166, 218332, 272915, 436664, 545830, 1091660, 2019571, 2183320, 4039142, 8078284, 10097855, 16156568, 20195710, 40391420, 80782840]

約数ペア:

[(1, 80782840), (2, 40391420), (4, 20195710), (5, 16156568), (8, 10097855), (10, 8078284), (20, 4039142), (37, 2183320), (40, 2019571), (74, 1091660), (148, 545830), (185, 436664), (296, 272915), (370, 218332), (740, 109166), (1480, 54583)]