81990900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{30367}}^1$

素因数の和:30390

約数の個数: 72

約数和(自身を含む): 263594240

約数和(自身を除く): 181603340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 135, 150, 180, 225, 270, 300, 450, 540, 675, 900, 1350, 2700, 30367, 60734, 91101, 121468, 151835, 182202, 273303, 303670, 364404, 455505, 546606, 607340, 759175, 819909, 911010, 1093212, 1366515, 1518350, 1639818, 1822020, 2277525, 2733030, 3036700, 3279636, 4099545, 4555050, 5466060, 6832575, 8199090, 9110100, 13665150, 16398180, 20497725, 27330300, 40995450, 81990900]

約数ペア:

[(1, 81990900), (2, 40995450), (3, 27330300), (4, 20497725), (5, 16398180), (6, 13665150), (9, 9110100), (10, 8199090), (12, 6832575), (15, 5466060), (18, 4555050), (20, 4099545), (25, 3279636), (27, 3036700), (30, 2733030), (36, 2277525), (45, 1822020), (50, 1639818), (54, 1518350), (60, 1366515), (75, 1093212), (90, 911010), (100, 819909), (108, 759175), (135, 607340), (150, 546606), (180, 455505), (225, 364404), (270, 303670), (300, 273303), (450, 182202), (540, 151835), (675, 121468), (900, 91101), (1350, 60734), (2700, 30367)]