72399280

素因数分解:

$2^4\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1291}}^1$

素因数の和:2005

約数の個数: 40

約数和(自身を含む): 168699024

約数和(自身を除く): 96299744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 701, 1291, 1402, 2582, 2804, 3505, 5164, 5608, 6455, 7010, 10328, 11216, 12910, 14020, 20656, 25820, 28040, 51640, 56080, 103280, 904991, 1809982, 3619964, 4524955, 7239928, 9049910, 14479856, 18099820, 36199640, 72399280]

約数ペア:

[(1, 72399280), (2, 36199640), (4, 18099820), (5, 14479856), (8, 9049910), (10, 7239928), (16, 4524955), (20, 3619964), (40, 1809982), (80, 904991), (701, 103280), (1291, 56080), (1402, 51640), (2582, 28040), (2804, 25820), (3505, 20656), (5164, 14020), (5608, 12910), (6455, 11216), (7010, 10328)]