179944840

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{13591}}^1$

素因数の和:13933

約数の個数: 32

約数和(自身を含む): 406128960

約数和(自身を除く): 226184120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 13240, 13591, 27182, 54364, 67955, 108728, 135910, 271820, 543640, 4498621, 8997242, 17994484, 22493105, 35988968, 44986210, 89972420, 179944840]

約数ペア:

[(1, 179944840), (2, 89972420), (4, 44986210), (5, 35988968), (8, 22493105), (10, 17994484), (20, 8997242), (40, 4498621), (331, 543640), (662, 271820), (1324, 135910), (1655, 108728), (2648, 67955), (3310, 54364), (6620, 27182), (13240, 13591)]