65429720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15881}}^1$

素因数の和:15995

約数の個数: 32

約数和(自身を含む): 148655520

約数和(自身を除く): 83225800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 15881, 31762, 63524, 79405, 127048, 158810, 317620, 635240, 1635743, 3271486, 6542972, 8178715, 13085944, 16357430, 32714860, 65429720]

約数ペア:

[(1, 65429720), (2, 32714860), (4, 16357430), (5, 13085944), (8, 8178715), (10, 6542972), (20, 3271486), (40, 1635743), (103, 635240), (206, 317620), (412, 158810), (515, 127048), (824, 79405), (1030, 63524), (2060, 31762), (4120, 15881)]