68556280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131839}}^1$

素因数の和:131863

約数の個数: 32

約数和(自身を含む): 166118400

約数和(自身を除く): 97562120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 131839, 263678, 527356, 659195, 1054712, 1318390, 1713907, 2636780, 3427814, 5273560, 6855628, 8569535, 13711256, 17139070, 34278140, 68556280]

約数ペア:

[(1, 68556280), (2, 34278140), (4, 17139070), (5, 13711256), (8, 8569535), (10, 6855628), (13, 5273560), (20, 3427814), (26, 2636780), (40, 1713907), (52, 1318390), (65, 1054712), (104, 659195), (130, 527356), (260, 263678), (520, 131839)]