78889904

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 157542000

約数和(自身を除く): 78652096

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 241, 328, 482, 499, 656, 964, 998, 1928, 1996, 3856, 3992, 7984, 9881, 19762, 20459, 39524, 40918, 79048, 81836, 120259, 158096, 163672, 240518, 327344, 481036, 962072, 1924144, 4930619, 9861238, 19722476, 39444952, 78889904]

約数ペア:

[(1, 78889904), (2, 39444952), (4, 19722476), (8, 9861238), (16, 4930619), (41, 1924144), (82, 962072), (164, 481036), (241, 327344), (328, 240518), (482, 163672), (499, 158096), (656, 120259), (964, 81836), (998, 79048), (1928, 40918), (1996, 39524), (3856, 20459), (3992, 19762), (7984, 9881)]