1387450120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4955179}}^1$

素因数の和:4955197

約数の個数: 32

約数和(自身を含む): 3567729600

約数和(自身を除く): 2180279480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4955179, 9910358, 19820716, 24775895, 34686253, 39641432, 49551790, 69372506, 99103580, 138745012, 173431265, 198207160, 277490024, 346862530, 693725060, 1387450120]

約数ペア:

[(1, 1387450120), (2, 693725060), (4, 346862530), (5, 277490024), (7, 198207160), (8, 173431265), (10, 138745012), (14, 99103580), (20, 69372506), (28, 49551790), (35, 39641432), (40, 34686253), (56, 24775895), (70, 19820716), (140, 9910358), (280, 4955179)]