18857080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2521}}^1$

素因数の和:2560

約数の個数: 64

約数和(自身を含む): 49027680

約数和(自身を除く): 30170600

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2521, 3740, 5042, 7480, 10084, 12605, 20168, 25210, 27731, 42857, 50420, 55462, 85714, 100840, 110924, 138655, 171428, 214285, 221848, 277310, 342856, 428570, 471427, 554620, 857140, 942854, 1109240, 1714280, 1885708, 2357135, 3771416, 4714270, 9428540, 18857080]

約数ペア:

[(1, 18857080), (2, 9428540), (4, 4714270), (5, 3771416), (8, 2357135), (10, 1885708), (11, 1714280), (17, 1109240), (20, 942854), (22, 857140), (34, 554620), (40, 471427), (44, 428570), (55, 342856), (68, 277310), (85, 221848), (88, 214285), (110, 171428), (136, 138655), (170, 110924), (187, 100840), (220, 85714), (340, 55462), (374, 50420), (440, 42857), (680, 27731), (748, 25210), (935, 20168), (1496, 12605), (1870, 10084), (2521, 7480), (3740, 5042)]