20990040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{174917}}^1$

素因数の和:174931

約数の個数: 32

約数和(自身を含む): 62970480

約数和(自身を除く): 41980440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 174917, 349834, 524751, 699668, 874585, 1049502, 1399336, 1749170, 2099004, 2623755, 3498340, 4198008, 5247510, 6996680, 10495020, 20990040]

約数ペア:

[(1, 20990040), (2, 10495020), (3, 6996680), (4, 5247510), (5, 4198008), (6, 3498340), (8, 2623755), (10, 2099004), (12, 1749170), (15, 1399336), (20, 1049502), (24, 874585), (30, 699668), (40, 524751), (60, 349834), (120, 174917)]