18278320520

素因数分解:

$2^3\times 5^1\times {\mathrm{3343}}^1\times {\mathrm{136691}}^1$

素因数の和:140045

約数の個数: 32

約数和(自身を含む): 41138824320

約数和(自身を除く): 22860503800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3343, 6686, 13372, 16715, 26744, 33430, 66860, 133720, 136691, 273382, 546764, 683455, 1093528, 1366910, 2733820, 5467640, 456958013, 913916026, 1827832052, 2284790065, 3655664104, 4569580130, 9139160260, 18278320520]

約数ペア:

[(1, 18278320520), (2, 9139160260), (4, 4569580130), (5, 3655664104), (8, 2284790065), (10, 1827832052), (20, 913916026), (40, 456958013), (3343, 5467640), (6686, 2733820), (13372, 1366910), (16715, 1093528), (26744, 683455), (33430, 546764), (66860, 273382), (133720, 136691)]