71720805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1867}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 124274304

約数和(自身を除く): 52553499

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 197, 591, 985, 1867, 2561, 2955, 5601, 7683, 9335, 12805, 24271, 28005, 38415, 72813, 121355, 364065, 367799, 1103397, 1838995, 4781387, 5516985, 14344161, 23906935, 71720805]

約数ペア:

[(1, 71720805), (3, 23906935), (5, 14344161), (13, 5516985), (15, 4781387), (39, 1838995), (65, 1103397), (195, 367799), (197, 364065), (591, 121355), (985, 72813), (1867, 38415), (2561, 28005), (2955, 24271), (5601, 12805), (7683, 9335)]