20124405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2203}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 41258880

約数和(自身を除く): 21134475

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2203, 3045, 6609, 9135, 11015, 15421, 19827, 33045, 46263, 63887, 77105, 99135, 138789, 191661, 231315, 319435, 447209, 574983, 693945, 958305, 1341627, 2236045, 2874915, 4024881, 6708135, 20124405]

約数ペア:

[(1, 20124405), (3, 6708135), (5, 4024881), (7, 2874915), (9, 2236045), (15, 1341627), (21, 958305), (29, 693945), (35, 574983), (45, 447209), (63, 319435), (87, 231315), (105, 191661), (145, 138789), (203, 99135), (261, 77105), (315, 63887), (435, 46263), (609, 33045), (1015, 19827), (1305, 15421), (1827, 11015), (2203, 9135), (3045, 6609)]