2021091080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1\times {\mathrm{1481}}^1$

素因数の和:1914

約数の個数: 64

約数和(自身を含む): 4606945200

約数和(自身を除く): 2585854120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 313, 436, 545, 626, 872, 1090, 1252, 1481, 1565, 2180, 2504, 2962, 3130, 4360, 5924, 6260, 7405, 11848, 12520, 14810, 29620, 34117, 59240, 68234, 136468, 161429, 170585, 272936, 322858, 341170, 463553, 645716, 682340, 807145, 927106, 1291432, 1364680, 1614290, 1854212, 2317765, 3228580, 3708424, 4635530, 6457160, 9271060, 18542120, 50527277, 101054554, 202109108, 252636385, 404218216, 505272770, 1010545540, 2021091080]

約数ペア:

[(1, 2021091080), (2, 1010545540), (4, 505272770), (5, 404218216), (8, 252636385), (10, 202109108), (20, 101054554), (40, 50527277), (109, 18542120), (218, 9271060), (313, 6457160), (436, 4635530), (545, 3708424), (626, 3228580), (872, 2317765), (1090, 1854212), (1252, 1614290), (1481, 1364680), (1565, 1291432), (2180, 927106), (2504, 807145), (2962, 682340), (3130, 645716), (4360, 463553), (5924, 341170), (6260, 322858), (7405, 272936), (11848, 170585), (12520, 161429), (14810, 136468), (29620, 68234), (34117, 59240)]