80316940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2017}}^1$

素因数の和:2218

約数の個数: 48

約数和(自身を含む): 185107104

約数和(自身を除く): 104790164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 2017, 3620, 3982, 4034, 7964, 8068, 9955, 10085, 19910, 20170, 22187, 39820, 40340, 44374, 88748, 110935, 221870, 365077, 443740, 730154, 1460308, 1825385, 3650770, 4015847, 7301540, 8031694, 16063388, 20079235, 40158470, 80316940]

約数ペア:

[(1, 80316940), (2, 40158470), (4, 20079235), (5, 16063388), (10, 8031694), (11, 7301540), (20, 4015847), (22, 3650770), (44, 1825385), (55, 1460308), (110, 730154), (181, 443740), (220, 365077), (362, 221870), (724, 110935), (905, 88748), (1810, 44374), (1991, 40340), (2017, 39820), (3620, 22187), (3982, 20170), (4034, 19910), (7964, 10085), (8068, 9955)]