28140680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4481}}^1$

素因数の和:4649

約数の個数: 32

約数和(自身を含む): 63734040

約数和(自身を除く): 35593360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4481, 6280, 8962, 17924, 22405, 35848, 44810, 89620, 179240, 703517, 1407034, 2814068, 3517585, 5628136, 7035170, 14070340, 28140680]

約数ペア:

[(1, 28140680), (2, 14070340), (4, 7035170), (5, 5628136), (8, 3517585), (10, 2814068), (20, 1407034), (40, 703517), (157, 179240), (314, 89620), (628, 44810), (785, 35848), (1256, 22405), (1570, 17924), (3140, 8962), (4481, 6280)]