68238640

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3319}}^1$

素因数の和:3589

約数の個数: 40

約数和(自身を含む): 159320160

約数和(自身を除く): 91081520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 3319, 4112, 5140, 6638, 10280, 13276, 16595, 20560, 26552, 33190, 53104, 66380, 132760, 265520, 852983, 1705966, 3411932, 4264915, 6823864, 8529830, 13647728, 17059660, 34119320, 68238640]

約数ペア:

[(1, 68238640), (2, 34119320), (4, 17059660), (5, 13647728), (8, 8529830), (10, 6823864), (16, 4264915), (20, 3411932), (40, 1705966), (80, 852983), (257, 265520), (514, 132760), (1028, 66380), (1285, 53104), (2056, 33190), (2570, 26552), (3319, 20560), (4112, 16595), (5140, 13276), (6638, 10280)]