991991330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{5333}}^1$

素因数の和:5459

約数の個数: 64

約数和(自身を含む): 2073859200

約数和(自身を除く): 1081867870

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 89, 95, 110, 178, 190, 209, 418, 445, 890, 979, 1045, 1691, 1958, 2090, 3382, 4895, 5333, 8455, 9790, 10666, 16910, 18601, 26665, 37202, 53330, 58663, 93005, 101327, 117326, 186010, 202654, 293315, 474637, 506635, 586630, 949274, 1013270, 1114597, 2229194, 2373185, 4746370, 5221007, 5572985, 9018103, 10442014, 11145970, 18036206, 26105035, 45090515, 52210070, 90181030, 99199133, 198398266, 495995665, 991991330]

約数ペア:

[(1, 991991330), (2, 495995665), (5, 198398266), (10, 99199133), (11, 90181030), (19, 52210070), (22, 45090515), (38, 26105035), (55, 18036206), (89, 11145970), (95, 10442014), (110, 9018103), (178, 5572985), (190, 5221007), (209, 4746370), (418, 2373185), (445, 2229194), (890, 1114597), (979, 1013270), (1045, 949274), (1691, 586630), (1958, 506635), (2090, 474637), (3382, 293315), (4895, 202654), (5333, 186010), (8455, 117326), (9790, 101327), (10666, 93005), (16910, 58663), (18601, 53330), (26665, 37202)]