80625880

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2917}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 181733040

約数和(自身を除く): 101107160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 2917, 3455, 5528, 5834, 6910, 11668, 13820, 14585, 23336, 27640, 29170, 58340, 116680, 2015647, 4031294, 8062588, 10078235, 16125176, 20156470, 40312940, 80625880]

約数ペア:

[(1, 80625880), (2, 40312940), (4, 20156470), (5, 16125176), (8, 10078235), (10, 8062588), (20, 4031294), (40, 2015647), (691, 116680), (1382, 58340), (2764, 29170), (2917, 27640), (3455, 23336), (5528, 14585), (5834, 13820), (6910, 11668)]