64020775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 98993664

約数和(自身を除く): 34972889

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 107, 175, 263, 325, 455, 535, 749, 1315, 1391, 1841, 2275, 2675, 3419, 3745, 6575, 6955, 9205, 9737, 17095, 18725, 23933, 28141, 34775, 46025, 48685, 85475, 119665, 140705, 196987, 243425, 365833, 598325, 703525, 984935, 1829165, 2560831, 4924675, 9145825, 12804155, 64020775]

約数ペア:

[(1, 64020775), (5, 12804155), (7, 9145825), (13, 4924675), (25, 2560831), (35, 1829165), (65, 984935), (91, 703525), (107, 598325), (175, 365833), (263, 243425), (325, 196987), (455, 140705), (535, 119665), (749, 85475), (1315, 48685), (1391, 46025), (1841, 34775), (2275, 28141), (2675, 23933), (3419, 18725), (3745, 17095), (6575, 9737), (6955, 9205)]