18287620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1901}}^1$

素因数の和:1960

約数の個数: 48

約数和(自身を含む): 42498288

約数和(自身を除く): 24210668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1901, 1924, 2405, 3802, 4810, 7604, 9505, 9620, 19010, 24713, 38020, 49426, 70337, 98852, 123565, 140674, 247130, 281348, 351685, 494260, 703370, 914381, 1406740, 1828762, 3657524, 4571905, 9143810, 18287620]

約数ペア:

[(1, 18287620), (2, 9143810), (4, 4571905), (5, 3657524), (10, 1828762), (13, 1406740), (20, 914381), (26, 703370), (37, 494260), (52, 351685), (65, 281348), (74, 247130), (130, 140674), (148, 123565), (185, 98852), (260, 70337), (370, 49426), (481, 38020), (740, 24713), (962, 19010), (1901, 9620), (1924, 9505), (2405, 7604), (3802, 4810)]