64917855

素因数分解:

$3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2029}}^1$

素因数の和:2125

約数の個数: 40

約数和(自身を含む): 117902400

約数和(自身を除く): 52984545

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 711, 1185, 2029, 2133, 3555, 6087, 6399, 10145, 10665, 18261, 30435, 31995, 54783, 91305, 160291, 164349, 273915, 480873, 801455, 821745, 1442619, 2404365, 4327857, 7213095, 12983571, 21639285, 64917855]

約数ペア:

[(1, 64917855), (3, 21639285), (5, 12983571), (9, 7213095), (15, 4327857), (27, 2404365), (45, 1442619), (79, 821745), (81, 801455), (135, 480873), (237, 273915), (395, 164349), (405, 160291), (711, 91305), (1185, 54783), (2029, 31995), (2133, 30435), (3555, 18261), (6087, 10665), (6399, 10145)]