20261140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 44488080

約数和(自身を除く): 24226940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 193, 290, 362, 386, 580, 724, 772, 905, 965, 1810, 1930, 3620, 3860, 5249, 5597, 10498, 11194, 20996, 22388, 26245, 27985, 34933, 52490, 55970, 69866, 104980, 111940, 139732, 174665, 349330, 698660, 1013057, 2026114, 4052228, 5065285, 10130570, 20261140]

約数ペア:

[(1, 20261140), (2, 10130570), (4, 5065285), (5, 4052228), (10, 2026114), (20, 1013057), (29, 698660), (58, 349330), (116, 174665), (145, 139732), (181, 111940), (193, 104980), (290, 69866), (362, 55970), (386, 52490), (580, 34933), (724, 27985), (772, 26245), (905, 22388), (965, 20996), (1810, 11194), (1930, 10498), (3620, 5597), (3860, 5249)]