28313480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54449}}^1$

素因数の和:54473

約数の個数: 32

約数和(自身を含む): 68607000

約数和(自身を除く): 40293520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54449, 108898, 217796, 272245, 435592, 544490, 707837, 1088980, 1415674, 2177960, 2831348, 3539185, 5662696, 7078370, 14156740, 28313480]

約数ペア:

[(1, 28313480), (2, 14156740), (4, 7078370), (5, 5662696), (8, 3539185), (10, 2831348), (13, 2177960), (20, 1415674), (26, 1088980), (40, 707837), (52, 544490), (65, 435592), (104, 272245), (130, 217796), (260, 108898), (520, 54449)]