68379280

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2153}}^1$

素因数の和:2563

約数の個数: 40

約数和(自身を含む): 159456312

約数和(自身を除く): 91077032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2153, 3176, 3970, 4306, 6352, 7940, 8612, 10765, 15880, 17224, 21530, 31760, 34448, 43060, 86120, 172240, 854741, 1709482, 3418964, 4273705, 6837928, 8547410, 13675856, 17094820, 34189640, 68379280]

約数ペア:

[(1, 68379280), (2, 34189640), (4, 17094820), (5, 13675856), (8, 8547410), (10, 6837928), (16, 4273705), (20, 3418964), (40, 1709482), (80, 854741), (397, 172240), (794, 86120), (1588, 43060), (1985, 34448), (2153, 31760), (3176, 21530), (3970, 17224), (4306, 15880), (6352, 10765), (7940, 8612)]