320565544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{99431}}^1$

素因数の和:99481

約数の個数: 32

約数和(自身を含む): 668183040

約数和(自身を除く): 347617496

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 99431, 198862, 397724, 795448, 1292603, 2585206, 3082361, 5170412, 6164722, 10340824, 12329444, 24658888, 40070693, 80141386, 160282772, 320565544]

約数ペア:

[(1, 320565544), (2, 160282772), (4, 80141386), (8, 40070693), (13, 24658888), (26, 12329444), (31, 10340824), (52, 6164722), (62, 5170412), (104, 3082361), (124, 2585206), (248, 1292603), (403, 795448), (806, 397724), (1612, 198862), (3224, 99431)]