1990819558

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1\times {\mathrm{1009}}^1$

素因数の和:1361

約数の個数: 64

約数和(自身を含む): 3791329920

約数和(自身を除く): 1800510362

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 182, 259, 293, 481, 518, 586, 962, 1009, 2018, 2051, 3367, 3809, 4102, 6734, 7063, 7618, 10841, 13117, 14126, 21682, 26234, 26663, 37333, 53326, 74666, 75887, 91819, 140933, 151774, 183638, 261331, 281866, 295637, 485329, 522662, 591274, 970658, 986531, 1973062, 2069459, 3397303, 3843281, 4138918, 6794606, 7686562, 10938569, 21877138, 26902967, 53805934, 76569983, 142201397, 153139966, 284402794, 995409779, 1990819558]

約数ペア:

[(1, 1990819558), (2, 995409779), (7, 284402794), (13, 153139966), (14, 142201397), (26, 76569983), (37, 53805934), (74, 26902967), (91, 21877138), (182, 10938569), (259, 7686562), (293, 6794606), (481, 4138918), (518, 3843281), (586, 3397303), (962, 2069459), (1009, 1973062), (2018, 986531), (2051, 970658), (3367, 591274), (3809, 522662), (4102, 485329), (6734, 295637), (7063, 281866), (7618, 261331), (10841, 183638), (13117, 151774), (14126, 140933), (21682, 91819), (26234, 75887), (26663, 74666), (37333, 53326)]