128326840

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{3167}}^1$

素因数の和:4191

約数の個数: 32

約数和(自身を含む): 289111680

約数和(自身を除く): 160784840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 2026, 3167, 4052, 5065, 6334, 8104, 10130, 12668, 15835, 20260, 25336, 31670, 40520, 63340, 126680, 3208171, 6416342, 12832684, 16040855, 25665368, 32081710, 64163420, 128326840]

約数ペア:

[(1, 128326840), (2, 64163420), (4, 32081710), (5, 25665368), (8, 16040855), (10, 12832684), (20, 6416342), (40, 3208171), (1013, 126680), (2026, 63340), (3167, 40520), (4052, 31670), (5065, 25336), (6334, 20260), (8104, 15835), (10130, 12668)]