19766560

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1021}}^1$

素因数の和:1058

約数の個数: 72

約数和(自身を含む): 51380028

約数和(自身を除く): 31613468

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1021, 1210, 1760, 1936, 2042, 2420, 3872, 4084, 4840, 5105, 8168, 9680, 10210, 11231, 16336, 19360, 20420, 22462, 32672, 40840, 44924, 56155, 81680, 89848, 112310, 123541, 163360, 179696, 224620, 247082, 359392, 449240, 494164, 617705, 898480, 988328, 1235410, 1796960, 1976656, 2470820, 3953312, 4941640, 9883280, 19766560]

約数ペア:

[(1, 19766560), (2, 9883280), (4, 4941640), (5, 3953312), (8, 2470820), (10, 1976656), (11, 1796960), (16, 1235410), (20, 988328), (22, 898480), (32, 617705), (40, 494164), (44, 449240), (55, 359392), (80, 247082), (88, 224620), (110, 179696), (121, 163360), (160, 123541), (176, 112310), (220, 89848), (242, 81680), (352, 56155), (440, 44924), (484, 40840), (605, 32672), (880, 22462), (968, 20420), (1021, 19360), (1210, 16336), (1760, 11231), (1936, 10210), (2042, 9680), (2420, 8168), (3872, 5105), (4084, 4840)]