118080520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{4591}}^1$

素因数の和:5245

約数の個数: 32

約数和(自身を含む): 266152320

約数和(自身を除く): 148071800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 4591, 5144, 6430, 9182, 12860, 18364, 22955, 25720, 36728, 45910, 91820, 183640, 2952013, 5904026, 11808052, 14760065, 23616104, 29520130, 59040260, 118080520]

約数ペア:

[(1, 118080520), (2, 59040260), (4, 29520130), (5, 23616104), (8, 14760065), (10, 11808052), (20, 5904026), (40, 2952013), (643, 183640), (1286, 91820), (2572, 45910), (3215, 36728), (4591, 25720), (5144, 22955), (6430, 18364), (9182, 12860)]