488981680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{555661}}^1$

素因数の和:555685

約数の個数: 40

約数和(自身を含む): 1240237584

約数和(自身を除く): 751255904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 555661, 1111322, 2222644, 2778305, 4445288, 5556610, 6112271, 8890576, 11113220, 12224542, 22226440, 24449084, 30561355, 44452880, 48898168, 61122710, 97796336, 122245420, 244490840, 488981680]

約数ペア:

[(1, 488981680), (2, 244490840), (4, 122245420), (5, 97796336), (8, 61122710), (10, 48898168), (11, 44452880), (16, 30561355), (20, 24449084), (22, 22226440), (40, 12224542), (44, 11113220), (55, 8890576), (80, 6112271), (88, 5556610), (110, 4445288), (176, 2778305), (220, 2222644), (440, 1111322), (880, 555661)]