11128840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4561}}^1$

素因数の和:4633

約数の個数: 32

約数和(自身を含む): 25455960

約数和(自身を除く): 14327120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 4561, 9122, 18244, 22805, 36488, 45610, 91220, 182440, 278221, 556442, 1112884, 1391105, 2225768, 2782210, 5564420, 11128840]

約数ペア:

[(1, 11128840), (2, 5564420), (4, 2782210), (5, 2225768), (8, 1391105), (10, 1112884), (20, 556442), (40, 278221), (61, 182440), (122, 91220), (244, 45610), (305, 36488), (488, 22805), (610, 18244), (1220, 9122), (2440, 4561)]