278314480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1811}}^1$

素因数の和:1954

約数の個数: 80

約数和(自身を含む): 691589664

約数和(自身を除く): 413275184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 113, 136, 170, 226, 272, 340, 452, 565, 680, 904, 1130, 1360, 1808, 1811, 1921, 2260, 3622, 3842, 4520, 7244, 7684, 9040, 9055, 9605, 14488, 15368, 18110, 19210, 28976, 30736, 30787, 36220, 38420, 61574, 72440, 76840, 123148, 144880, 153680, 153935, 204643, 246296, 307870, 409286, 492592, 615740, 818572, 1023215, 1231480, 1637144, 2046430, 2462960, 3274288, 3478931, 4092860, 6957862, 8185720, 13915724, 16371440, 17394655, 27831448, 34789310, 55662896, 69578620, 139157240, 278314480]

約数ペア:

[(1, 278314480), (2, 139157240), (4, 69578620), (5, 55662896), (8, 34789310), (10, 27831448), (16, 17394655), (17, 16371440), (20, 13915724), (34, 8185720), (40, 6957862), (68, 4092860), (80, 3478931), (85, 3274288), (113, 2462960), (136, 2046430), (170, 1637144), (226, 1231480), (272, 1023215), (340, 818572), (452, 615740), (565, 492592), (680, 409286), (904, 307870), (1130, 246296), (1360, 204643), (1808, 153935), (1811, 153680), (1921, 144880), (2260, 123148), (3622, 76840), (3842, 72440), (4520, 61574), (7244, 38420), (7684, 36220), (9040, 30787), (9055, 30736), (9605, 28976), (14488, 19210), (15368, 18110)]