639621336

素因数分解:

$2^3\times 3^1\times {\mathrm{653}}^1\times {\mathrm{40813}}^1$

素因数の和:41475

約数の個数: 32

約数和(自身を含む): 1601541360

約数和(自身を除く): 961920024

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 653, 1306, 1959, 2612, 3918, 5224, 7836, 15672, 40813, 81626, 122439, 163252, 244878, 326504, 489756, 979512, 26650889, 53301778, 79952667, 106603556, 159905334, 213207112, 319810668, 639621336]

約数ペア:

[(1, 639621336), (2, 319810668), (3, 213207112), (4, 159905334), (6, 106603556), (8, 79952667), (12, 53301778), (24, 26650889), (653, 979512), (1306, 489756), (1959, 326504), (2612, 244878), (3918, 163252), (5224, 122439), (7836, 81626), (15672, 40813)]