20503870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4159}}^1$

素因数の和:4212

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19931330

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4159, 4930, 8318, 20795, 41590, 70703, 120611, 141406, 241222, 353515, 603055, 707030, 1206110, 2050387, 4100774, 10251935, 20503870]

約数ペア:

[(1, 20503870), (2, 10251935), (5, 4100774), (10, 2050387), (17, 1206110), (29, 707030), (34, 603055), (58, 353515), (85, 241222), (145, 141406), (170, 120611), (290, 70703), (493, 41590), (986, 20795), (2465, 8318), (4159, 4930)]