1209743480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{249947}}^1$

素因数の和:249980

約数の個数: 48

約数和(自身を含む): 2991877560

約数和(自身を除く): 1782134080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 249947, 499894, 999788, 1249735, 1999576, 2499470, 2749417, 4998940, 5498834, 9997880, 10997668, 13747085, 21995336, 27494170, 30243587, 54988340, 60487174, 109976680, 120974348, 151217935, 241948696, 302435870, 604871740, 1209743480]

約数ペア:

[(1, 1209743480), (2, 604871740), (4, 302435870), (5, 241948696), (8, 151217935), (10, 120974348), (11, 109976680), (20, 60487174), (22, 54988340), (40, 30243587), (44, 27494170), (55, 21995336), (88, 13747085), (110, 10997668), (121, 9997880), (220, 5498834), (242, 4998940), (440, 2749417), (484, 2499470), (605, 1999576), (968, 1249735), (1210, 999788), (2420, 499894), (4840, 249947)]