672880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:673

約数の個数: 40

約数和(自身を含む): 1687392

約数和(自身を除く): 1014512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 647, 1040, 1294, 2588, 3235, 5176, 6470, 8411, 10352, 12940, 16822, 25880, 33644, 42055, 51760, 67288, 84110, 134576, 168220, 336440, 672880]

約数ペア:

[(1, 672880), (2, 336440), (4, 168220), (5, 134576), (8, 84110), (10, 67288), (13, 51760), (16, 42055), (20, 33644), (26, 25880), (40, 16822), (52, 12940), (65, 10352), (80, 8411), (104, 6470), (130, 5176), (208, 3235), (260, 2588), (520, 1294), (647, 1040)]