80878960

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{4339}}^1$

素因数の和:4585

約数の個数: 40

約数和(自身を含む): 188894160

約数和(自身を除く): 108015200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 1165, 1864, 2330, 3728, 4339, 4660, 8678, 9320, 17356, 18640, 21695, 34712, 43390, 69424, 86780, 173560, 347120, 1010987, 2021974, 4043948, 5054935, 8087896, 10109870, 16175792, 20219740, 40439480, 80878960]

約数ペア:

[(1, 80878960), (2, 40439480), (4, 20219740), (5, 16175792), (8, 10109870), (10, 8087896), (16, 5054935), (20, 4043948), (40, 2021974), (80, 1010987), (233, 347120), (466, 173560), (932, 86780), (1165, 69424), (1864, 43390), (2330, 34712), (3728, 21695), (4339, 18640), (4660, 17356), (8678, 9320)]