2008797080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1\times {\mathrm{1021}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 4578396480

約数和(自身を除く): 2569599400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 487, 505, 808, 974, 1010, 1021, 1948, 2020, 2042, 2435, 3896, 4040, 4084, 4870, 5105, 8168, 9740, 10210, 19480, 20420, 40840, 49187, 98374, 103121, 196748, 206242, 245935, 393496, 412484, 491870, 497227, 515605, 824968, 983740, 994454, 1031210, 1967480, 1988908, 2062420, 2486135, 3977816, 4124840, 4972270, 9944540, 19889080, 50219927, 100439854, 200879708, 251099635, 401759416, 502199270, 1004398540, 2008797080]

約数ペア:

[(1, 2008797080), (2, 1004398540), (4, 502199270), (5, 401759416), (8, 251099635), (10, 200879708), (20, 100439854), (40, 50219927), (101, 19889080), (202, 9944540), (404, 4972270), (487, 4124840), (505, 3977816), (808, 2486135), (974, 2062420), (1010, 1988908), (1021, 1967480), (1948, 1031210), (2020, 994454), (2042, 983740), (2435, 824968), (3896, 515605), (4040, 497227), (4084, 491870), (4870, 412484), (5105, 393496), (8168, 245935), (9740, 206242), (10210, 196748), (19480, 103121), (20420, 98374), (40840, 49187)]