77148880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 188362944

約数和(自身を除く): 111214064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 547, 656, 688, 820, 860, 1094, 1640, 1720, 1763, 2188, 2735, 3280, 3440, 3526, 4376, 5470, 7052, 8752, 8815, 10940, 14104, 17630, 21880, 22427, 23521, 28208, 35260, 43760, 44854, 47042, 70520, 89708, 94084, 112135, 117605, 141040, 179416, 188168, 224270, 235210, 358832, 376336, 448540, 470420, 897080, 940840, 964361, 1794160, 1881680, 1928722, 3857444, 4821805, 7714888, 9643610, 15429776, 19287220, 38574440, 77148880]

約数ペア:

[(1, 77148880), (2, 38574440), (4, 19287220), (5, 15429776), (8, 9643610), (10, 7714888), (16, 4821805), (20, 3857444), (40, 1928722), (41, 1881680), (43, 1794160), (80, 964361), (82, 940840), (86, 897080), (164, 470420), (172, 448540), (205, 376336), (215, 358832), (328, 235210), (344, 224270), (410, 188168), (430, 179416), (547, 141040), (656, 117605), (688, 112135), (820, 94084), (860, 89708), (1094, 70520), (1640, 47042), (1720, 44854), (1763, 43760), (2188, 35260), (2735, 28208), (3280, 23521), (3440, 22427), (3526, 21880), (4376, 17630), (5470, 14104), (7052, 10940), (8752, 8815)]