64509775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8089}}^1$

素因数の和:8139

約数の個数: 24

約数和(自身を含む): 90284400

約数和(自身を除く): 25774625

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 7975, 8089, 40445, 88979, 202225, 234581, 444895, 1172905, 2224475, 2580391, 5864525, 12901955, 64509775]

約数ペア:

[(1, 64509775), (5, 12901955), (11, 5864525), (25, 2580391), (29, 2224475), (55, 1172905), (145, 444895), (275, 234581), (319, 202225), (725, 88979), (1595, 40445), (7975, 8089)]