18749380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1949}}^1$

素因数の和:2008

約数の個数: 48

約数和(自身を含む): 43570800

約数和(自身を除く): 24821420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 1949, 2405, 3898, 4810, 7796, 9620, 9745, 19490, 25337, 38980, 50674, 72113, 101348, 126685, 144226, 253370, 288452, 360565, 506740, 721130, 937469, 1442260, 1874938, 3749876, 4687345, 9374690, 18749380]

約数ペア:

[(1, 18749380), (2, 9374690), (4, 4687345), (5, 3749876), (10, 1874938), (13, 1442260), (20, 937469), (26, 721130), (37, 506740), (52, 360565), (65, 288452), (74, 253370), (130, 144226), (148, 126685), (185, 101348), (260, 72113), (370, 50674), (481, 38980), (740, 25337), (962, 19490), (1924, 9745), (1949, 9620), (2405, 7796), (3898, 4810)]