78857660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1291

約数の個数: 72

約数和(自身を含む): 195675984

約数和(自身を除く): 116818324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 469, 490, 670, 938, 980, 1201, 1340, 1876, 2345, 2402, 3283, 4690, 4804, 6005, 6566, 8407, 9380, 12010, 13132, 16415, 16814, 24020, 32830, 33628, 42035, 58849, 65660, 80467, 84070, 117698, 160934, 168140, 235396, 294245, 321868, 402335, 563269, 588490, 804670, 1126538, 1176980, 1609340, 2253076, 2816345, 3942883, 5632690, 7885766, 11265380, 15771532, 19714415, 39428830, 78857660]

約数ペア:

[(1, 78857660), (2, 39428830), (4, 19714415), (5, 15771532), (7, 11265380), (10, 7885766), (14, 5632690), (20, 3942883), (28, 2816345), (35, 2253076), (49, 1609340), (67, 1176980), (70, 1126538), (98, 804670), (134, 588490), (140, 563269), (196, 402335), (245, 321868), (268, 294245), (335, 235396), (469, 168140), (490, 160934), (670, 117698), (938, 84070), (980, 80467), (1201, 65660), (1340, 58849), (1876, 42035), (2345, 33628), (2402, 32830), (3283, 24020), (4690, 16814), (4804, 16415), (6005, 13132), (6566, 12010), (8407, 9380)]