19389040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2003}}^1$

素因数の和:2038

約数の個数: 60

約数和(自身を含む): 49574952

約数和(自身を除く): 30185912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2003, 2420, 4006, 4840, 8012, 9680, 10015, 16024, 20030, 22033, 32048, 40060, 44066, 80120, 88132, 110165, 160240, 176264, 220330, 242363, 352528, 440660, 484726, 881320, 969452, 1211815, 1762640, 1938904, 2423630, 3877808, 4847260, 9694520, 19389040]

約数ペア:

[(1, 19389040), (2, 9694520), (4, 4847260), (5, 3877808), (8, 2423630), (10, 1938904), (11, 1762640), (16, 1211815), (20, 969452), (22, 881320), (40, 484726), (44, 440660), (55, 352528), (80, 242363), (88, 220330), (110, 176264), (121, 160240), (176, 110165), (220, 88132), (242, 80120), (440, 44066), (484, 40060), (605, 32048), (880, 22033), (968, 20030), (1210, 16024), (1936, 10015), (2003, 9680), (2420, 8012), (4006, 4840)]