336440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 816480

約数和(自身を除く): 480040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 647, 1294, 2588, 3235, 5176, 6470, 8411, 12940, 16822, 25880, 33644, 42055, 67288, 84110, 168220, 336440]

約数ペア:

[(1, 336440), (2, 168220), (4, 84110), (5, 67288), (8, 42055), (10, 33644), (13, 25880), (20, 16822), (26, 12940), (40, 8411), (52, 6470), (65, 5176), (104, 3235), (130, 2588), (260, 1294), (520, 647)]