80915360

素因数分解:

$2^5\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1787}}^1$

素因数の和:2085

約数の個数: 48

約数和(自身を含む): 191945376

約数和(自身を除く): 111030016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 283, 566, 1132, 1415, 1787, 2264, 2830, 3574, 4528, 5660, 7148, 8935, 9056, 11320, 14296, 17870, 22640, 28592, 35740, 45280, 57184, 71480, 142960, 285920, 505721, 1011442, 2022884, 2528605, 4045768, 5057210, 8091536, 10114420, 16183072, 20228840, 40457680, 80915360]

約数ペア:

[(1, 80915360), (2, 40457680), (4, 20228840), (5, 16183072), (8, 10114420), (10, 8091536), (16, 5057210), (20, 4045768), (32, 2528605), (40, 2022884), (80, 1011442), (160, 505721), (283, 285920), (566, 142960), (1132, 71480), (1415, 57184), (1787, 45280), (2264, 35740), (2830, 28592), (3574, 22640), (4528, 17870), (5660, 14296), (7148, 11320), (8935, 9056)]