20439100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1093}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 51277968

約数和(自身を除く): 30838868

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1093, 1100, 1700, 1870, 2186, 3740, 4372, 4675, 5465, 9350, 10930, 12023, 18581, 18700, 21860, 24046, 27325, 37162, 48092, 54650, 60115, 74324, 92905, 109300, 120230, 185810, 204391, 240460, 300575, 371620, 408782, 464525, 601150, 817564, 929050, 1021955, 1202300, 1858100, 2043910, 4087820, 5109775, 10219550, 20439100]

約数ペア:

[(1, 20439100), (2, 10219550), (4, 5109775), (5, 4087820), (10, 2043910), (11, 1858100), (17, 1202300), (20, 1021955), (22, 929050), (25, 817564), (34, 601150), (44, 464525), (50, 408782), (55, 371620), (68, 300575), (85, 240460), (100, 204391), (110, 185810), (170, 120230), (187, 109300), (220, 92905), (275, 74324), (340, 60115), (374, 54650), (425, 48092), (550, 37162), (748, 27325), (850, 24046), (935, 21860), (1093, 18700), (1100, 18581), (1700, 12023), (1870, 10930), (2186, 9350), (3740, 5465), (4372, 4675)]