78270640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:555

約数の個数: 120

約数和(自身を含む): 217298592

約数和(自身を除く): 139027952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 164, 196, 205, 245, 280, 287, 328, 392, 410, 487, 490, 560, 574, 656, 784, 820, 974, 980, 1148, 1435, 1640, 1948, 1960, 2009, 2296, 2435, 2870, 3280, 3409, 3896, 3920, 4018, 4592, 4870, 5740, 6818, 7792, 8036, 9740, 10045, 11480, 13636, 16072, 17045, 19480, 19967, 20090, 22960, 23863, 27272, 32144, 34090, 38960, 39934, 40180, 47726, 54544, 68180, 79868, 80360, 95452, 99835, 119315, 136360, 139769, 159736, 160720, 190904, 199670, 238630, 272720, 279538, 319472, 381808, 399340, 477260, 559076, 698845, 798680, 954520, 978383, 1118152, 1397690, 1597360, 1909040, 1956766, 2236304, 2795380, 3913532, 4891915, 5590760, 7827064, 9783830, 11181520, 15654128, 19567660, 39135320, 78270640]

約数ペア:

[(1, 78270640), (2, 39135320), (4, 19567660), (5, 15654128), (7, 11181520), (8, 9783830), (10, 7827064), (14, 5590760), (16, 4891915), (20, 3913532), (28, 2795380), (35, 2236304), (40, 1956766), (41, 1909040), (49, 1597360), (56, 1397690), (70, 1118152), (80, 978383), (82, 954520), (98, 798680), (112, 698845), (140, 559076), (164, 477260), (196, 399340), (205, 381808), (245, 319472), (280, 279538), (287, 272720), (328, 238630), (392, 199670), (410, 190904), (487, 160720), (490, 159736), (560, 139769), (574, 136360), (656, 119315), (784, 99835), (820, 95452), (974, 80360), (980, 79868), (1148, 68180), (1435, 54544), (1640, 47726), (1948, 40180), (1960, 39934), (2009, 38960), (2296, 34090), (2435, 32144), (2870, 27272), (3280, 23863), (3409, 22960), (3896, 20090), (3920, 19967), (4018, 19480), (4592, 17045), (4870, 16072), (5740, 13636), (6818, 11480), (7792, 10045), (8036, 9740)]