31810840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 75893760

約数和(自身を除く): 44082920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 487, 568, 710, 920, 974, 1420, 1633, 1948, 2435, 2840, 3266, 3896, 4870, 6532, 8165, 9740, 11201, 13064, 16330, 19480, 22402, 32660, 34577, 44804, 56005, 65320, 69154, 89608, 112010, 138308, 172885, 224020, 276616, 345770, 448040, 691540, 795271, 1383080, 1590542, 3181084, 3976355, 6362168, 7952710, 15905420, 31810840]

約数ペア:

[(1, 31810840), (2, 15905420), (4, 7952710), (5, 6362168), (8, 3976355), (10, 3181084), (20, 1590542), (23, 1383080), (40, 795271), (46, 691540), (71, 448040), (92, 345770), (115, 276616), (142, 224020), (184, 172885), (230, 138308), (284, 112010), (355, 89608), (460, 69154), (487, 65320), (568, 56005), (710, 44804), (920, 34577), (974, 32660), (1420, 22402), (1633, 19480), (1948, 16330), (2435, 13064), (2840, 11201), (3266, 9740), (3896, 8165), (4870, 6532)]