71181440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10111}}^1$

素因数の和:10141

約数の個数: 64

約数和(自身を含む): 185656320

約数和(自身を除く): 114474880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 10111, 20222, 40444, 50555, 80888, 101110, 111221, 161776, 202220, 222442, 323552, 404440, 444884, 556105, 647104, 808880, 889768, 1112210, 1294208, 1617760, 1779536, 2224420, 3235520, 3559072, 4448840, 6471040, 7118144, 8897680, 14236288, 17795360, 35590720, 71181440]

約数ペア:

[(1, 71181440), (2, 35590720), (4, 17795360), (5, 14236288), (8, 8897680), (10, 7118144), (11, 6471040), (16, 4448840), (20, 3559072), (22, 3235520), (32, 2224420), (40, 1779536), (44, 1617760), (55, 1294208), (64, 1112210), (80, 889768), (88, 808880), (110, 647104), (128, 556105), (160, 444884), (176, 404440), (220, 323552), (320, 222442), (352, 202220), (440, 161776), (640, 111221), (704, 101110), (880, 80888), (1408, 50555), (1760, 40444), (3520, 20222), (7040, 10111)]