71372420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1087}}^1$

素因数の和:1177

約数の個数: 72

約数和(自身を含む): 177117696

約数和(自身を除く): 105745276

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, 1087, 1340, 1876, 2174, 2345, 3283, 4348, 4690, 5435, 6566, 7609, 9380, 10870, 13132, 15218, 16415, 21740, 30436, 32830, 38045, 53263, 65660, 72829, 76090, 106526, 145658, 152180, 213052, 266315, 291316, 364145, 509803, 532630, 728290, 1019606, 1065260, 1456580, 2039212, 2549015, 3568621, 5098030, 7137242, 10196060, 14274484, 17843105, 35686210, 71372420]

約数ペア:

[(1, 71372420), (2, 35686210), (4, 17843105), (5, 14274484), (7, 10196060), (10, 7137242), (14, 5098030), (20, 3568621), (28, 2549015), (35, 2039212), (49, 1456580), (67, 1065260), (70, 1019606), (98, 728290), (134, 532630), (140, 509803), (196, 364145), (245, 291316), (268, 266315), (335, 213052), (469, 152180), (490, 145658), (670, 106526), (938, 76090), (980, 72829), (1087, 65660), (1340, 53263), (1876, 38045), (2174, 32830), (2345, 30436), (3283, 21740), (4348, 16415), (4690, 15218), (5435, 13132), (6566, 10870), (7609, 9380)]