12496880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1291}}^1$

素因数の和:1326

約数の個数: 60

約数和(自身を含む): 31961496

約数和(自身を除く): 19464616

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, 1291, 1936, 2420, 2582, 4840, 5164, 6455, 9680, 10328, 12910, 14201, 20656, 25820, 28402, 51640, 56804, 71005, 103280, 113608, 142010, 156211, 227216, 284020, 312422, 568040, 624844, 781055, 1136080, 1249688, 1562110, 2499376, 3124220, 6248440, 12496880]

約数ペア:

[(1, 12496880), (2, 6248440), (4, 3124220), (5, 2499376), (8, 1562110), (10, 1249688), (11, 1136080), (16, 781055), (20, 624844), (22, 568040), (40, 312422), (44, 284020), (55, 227216), (80, 156211), (88, 142010), (110, 113608), (121, 103280), (176, 71005), (220, 56804), (242, 51640), (440, 28402), (484, 25820), (605, 20656), (880, 14201), (968, 12910), (1210, 10328), (1291, 9680), (1936, 6455), (2420, 5164), (2582, 4840)]