13688560

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:841

約数の個数: 40

約数和(自身を含む): 31980096

約数和(自身を除く): 18291536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 431, 794, 862, 1588, 1724, 1985, 2155, 3176, 3448, 3970, 4310, 6352, 6896, 7940, 8620, 15880, 17240, 31760, 34480, 171107, 342214, 684428, 855535, 1368856, 1711070, 2737712, 3422140, 6844280, 13688560]

約数ペア:

[(1, 13688560), (2, 6844280), (4, 3422140), (5, 2737712), (8, 1711070), (10, 1368856), (16, 855535), (20, 684428), (40, 342214), (80, 171107), (397, 34480), (431, 31760), (794, 17240), (862, 15880), (1588, 8620), (1724, 7940), (1985, 6896), (2155, 6352), (3176, 4310), (3448, 3970)]