2018954920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1173811}}^1$

素因数の和:1173865

約数の個数: 32

約数和(自身を含む): 4648295520

約数和(自身を除く): 2629340600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1173811, 2347622, 4695244, 5869055, 9390488, 11738110, 23476220, 46952440, 50473873, 100947746, 201895492, 252369365, 403790984, 504738730, 1009477460, 2018954920]

約数ペア:

[(1, 2018954920), (2, 1009477460), (4, 504738730), (5, 403790984), (8, 252369365), (10, 201895492), (20, 100947746), (40, 50473873), (43, 46952440), (86, 23476220), (172, 11738110), (215, 9390488), (344, 5869055), (430, 4695244), (860, 2347622), (1720, 1173811)]