91728440

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8923}}^1$

素因数の和:9191

約数の個数: 32

約数和(自身を含む): 207215280

約数和(自身を除く): 115486840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8923, 10280, 17846, 35692, 44615, 71384, 89230, 178460, 356920, 2293211, 4586422, 9172844, 11466055, 18345688, 22932110, 45864220, 91728440]

約数ペア:

[(1, 91728440), (2, 45864220), (4, 22932110), (5, 18345688), (8, 11466055), (10, 9172844), (20, 4586422), (40, 2293211), (257, 356920), (514, 178460), (1028, 89230), (1285, 71384), (2056, 44615), (2570, 35692), (5140, 17846), (8923, 10280)]