78120680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4129}}^1$

素因数の和:4194

約数の個数: 64

約数和(自身を含む): 196257600

約数和(自身を除く): 118136920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4129, 4730, 8258, 9460, 16516, 18920, 20645, 33032, 41290, 45419, 82580, 90838, 165160, 177547, 181676, 227095, 355094, 363352, 454190, 710188, 887735, 908380, 1420376, 1775470, 1816760, 1953017, 3550940, 3906034, 7101880, 7812068, 9765085, 15624136, 19530170, 39060340, 78120680]

約数ペア:

[(1, 78120680), (2, 39060340), (4, 19530170), (5, 15624136), (8, 9765085), (10, 7812068), (11, 7101880), (20, 3906034), (22, 3550940), (40, 1953017), (43, 1816760), (44, 1775470), (55, 1420376), (86, 908380), (88, 887735), (110, 710188), (172, 454190), (215, 363352), (220, 355094), (344, 227095), (430, 181676), (440, 177547), (473, 165160), (860, 90838), (946, 82580), (1720, 45419), (1892, 41290), (2365, 33032), (3784, 20645), (4129, 18920), (4730, 16516), (8258, 9460)]