28248680

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3347}}^1$

素因数の和:3569

約数の個数: 32

約数和(自身を含む): 63879840

約数和(自身を除く): 35631160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 3347, 4220, 6694, 8440, 13388, 16735, 26776, 33470, 66940, 133880, 706217, 1412434, 2824868, 3531085, 5649736, 7062170, 14124340, 28248680]

約数ペア:

[(1, 28248680), (2, 14124340), (4, 7062170), (5, 5649736), (8, 3531085), (10, 2824868), (20, 1412434), (40, 706217), (211, 133880), (422, 66940), (844, 33470), (1055, 26776), (1688, 16735), (2110, 13388), (3347, 8440), (4220, 6694)]