64861240

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{4673}}^1$

素因数の和:5031

約数の個数: 32

約数和(自身を含む): 146389680

約数和(自身を除く): 81528440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 4673, 6940, 9346, 13880, 18692, 23365, 37384, 46730, 93460, 186920, 1621531, 3243062, 6486124, 8107655, 12972248, 16215310, 32430620, 64861240]

約数ペア:

[(1, 64861240), (2, 32430620), (4, 16215310), (5, 12972248), (8, 8107655), (10, 6486124), (20, 3243062), (40, 1621531), (347, 186920), (694, 93460), (1388, 46730), (1735, 37384), (2776, 23365), (3470, 18692), (4673, 13880), (6940, 9346)]