1640390958

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{55807}}^1$

素因数の和:55909

約数の個数: 48

約数和(自身を含む): 3761012736

約数和(自身を除く): 2120621778

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 138, 142, 207, 213, 414, 426, 639, 1278, 1633, 3266, 4899, 9798, 14697, 29394, 55807, 111614, 167421, 334842, 502263, 1004526, 1283561, 2567122, 3850683, 3962297, 7701366, 7924594, 11552049, 11886891, 23104098, 23773782, 35660673, 71321346, 91132831, 182265662, 273398493, 546796986, 820195479, 1640390958]

約数ペア:

[(1, 1640390958), (2, 820195479), (3, 546796986), (6, 273398493), (9, 182265662), (18, 91132831), (23, 71321346), (46, 35660673), (69, 23773782), (71, 23104098), (138, 11886891), (142, 11552049), (207, 7924594), (213, 7701366), (414, 3962297), (426, 3850683), (639, 2567122), (1278, 1283561), (1633, 1004526), (3266, 502263), (4899, 334842), (9798, 167421), (14697, 111614), (29394, 55807)]