78445840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1040

約数の個数: 80

約数和(自身を含む): 201237120

約数和(自身を除く): 122791280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 176, 194, 220, 388, 440, 485, 776, 880, 919, 970, 1067, 1552, 1838, 1940, 2134, 3676, 3880, 4268, 4595, 5335, 7352, 7760, 8536, 9190, 10109, 10670, 14704, 17072, 18380, 20218, 21340, 36760, 40436, 42680, 50545, 73520, 80872, 85360, 89143, 101090, 161744, 178286, 202180, 356572, 404360, 445715, 713144, 808720, 891430, 980573, 1426288, 1782860, 1961146, 3565720, 3922292, 4902865, 7131440, 7844584, 9805730, 15689168, 19611460, 39222920, 78445840]

約数ペア:

[(1, 78445840), (2, 39222920), (4, 19611460), (5, 15689168), (8, 9805730), (10, 7844584), (11, 7131440), (16, 4902865), (20, 3922292), (22, 3565720), (40, 1961146), (44, 1782860), (55, 1426288), (80, 980573), (88, 891430), (97, 808720), (110, 713144), (176, 445715), (194, 404360), (220, 356572), (388, 202180), (440, 178286), (485, 161744), (776, 101090), (880, 89143), (919, 85360), (970, 80872), (1067, 73520), (1552, 50545), (1838, 42680), (1940, 40436), (2134, 36760), (3676, 21340), (3880, 20218), (4268, 18380), (4595, 17072), (5335, 14704), (7352, 10670), (7760, 10109), (8536, 9190)]