73821680

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2141}}^1$

素因数の和:2585

約数の個数: 40

約数和(自身を含む): 172113984

約数和(自身を除く): 98292304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2141, 2155, 3448, 4282, 4310, 6896, 8564, 8620, 10705, 17128, 17240, 21410, 34256, 34480, 42820, 85640, 171280, 922771, 1845542, 3691084, 4613855, 7382168, 9227710, 14764336, 18455420, 36910840, 73821680]

約数ペア:

[(1, 73821680), (2, 36910840), (4, 18455420), (5, 14764336), (8, 9227710), (10, 7382168), (16, 4613855), (20, 3691084), (40, 1845542), (80, 922771), (431, 171280), (862, 85640), (1724, 42820), (2141, 34480), (2155, 34256), (3448, 21410), (4282, 17240), (4310, 17128), (6896, 10705), (8564, 8620)]