81190705

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1451}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 106216704

約数和(自身を除く): 25025999

約数列:

[1, 5, 19, 31, 95, 155, 361, 589, 1451, 1805, 2945, 7255, 11191, 27569, 44981, 55955, 137845, 224905, 523811, 854639, 2619055, 4273195, 16238141, 81190705]

約数ペア:

[(1, 81190705), (5, 16238141), (19, 4273195), (31, 2619055), (95, 854639), (155, 523811), (361, 224905), (589, 137845), (1451, 55955), (1805, 44981), (2945, 27569), (7255, 11191)]