81008355

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{643}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 133910784

約数和(自身を除く): 52902429

約数列:

[1, 3, 5, 15, 37, 111, 185, 227, 555, 643, 681, 1135, 1929, 3215, 3405, 8399, 9645, 23791, 25197, 41995, 71373, 118955, 125985, 145961, 356865, 437883, 729805, 2189415, 5400557, 16201671, 27002785, 81008355]

約数ペア:

[(1, 81008355), (3, 27002785), (5, 16201671), (15, 5400557), (37, 2189415), (111, 729805), (185, 437883), (227, 356865), (555, 145961), (643, 125985), (681, 118955), (1135, 71373), (1929, 41995), (3215, 25197), (3405, 23791), (8399, 9645)]