390517478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{733}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 653060352

約数和(自身を除く): 262542874

約数列:

[1, 2, 13, 26, 31, 62, 403, 661, 733, 806, 1322, 1466, 8593, 9529, 17186, 19058, 20491, 22723, 40982, 45446, 266383, 295399, 484513, 532766, 590798, 969026, 6298669, 12597338, 15019903, 30039806, 195258739, 390517478]

約数ペア:

[(1, 390517478), (2, 195258739), (13, 30039806), (26, 15019903), (31, 12597338), (62, 6298669), (403, 969026), (661, 590798), (733, 532766), (806, 484513), (1322, 295399), (1466, 266383), (8593, 45446), (9529, 40982), (17186, 22723), (19058, 20491)]