81085840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{92143}}^1$

素因数の和:92167

約数の個数: 40

約数和(自身を含む): 205665408

約数和(自身を除く): 124579568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 92143, 184286, 368572, 460715, 737144, 921430, 1013573, 1474288, 1842860, 2027146, 3685720, 4054292, 5067865, 7371440, 8108584, 10135730, 16217168, 20271460, 40542920, 81085840]

約数ペア:

[(1, 81085840), (2, 40542920), (4, 20271460), (5, 16217168), (8, 10135730), (10, 8108584), (11, 7371440), (16, 5067865), (20, 4054292), (22, 3685720), (40, 2027146), (44, 1842860), (55, 1474288), (80, 1013573), (88, 921430), (110, 737144), (176, 460715), (220, 368572), (440, 184286), (880, 92143)]