80921072

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{136691}}^1$

素因数の和:136736

約数の個数: 20

約数和(自身を含む): 161023176

約数和(自身を除く): 80102104

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 136691, 273382, 546764, 1093528, 2187056, 5057567, 10115134, 20230268, 40460536, 80921072]

約数ペア:

[(1, 80921072), (2, 40460536), (4, 20230268), (8, 10115134), (16, 5057567), (37, 2187056), (74, 1093528), (148, 546764), (296, 273382), (592, 136691)]