78431720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{41719}}^1$

素因数の和:41777

約数の個数: 32

約数和(自身を含む): 180230400

約数和(自身を除く): 101798680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 41719, 83438, 166876, 208595, 333752, 417190, 834380, 1668760, 1960793, 3921586, 7843172, 9803965, 15686344, 19607930, 39215860, 78431720]

約数ペア:

[(1, 78431720), (2, 39215860), (4, 19607930), (5, 15686344), (8, 9803965), (10, 7843172), (20, 3921586), (40, 1960793), (47, 1668760), (94, 834380), (188, 417190), (235, 333752), (376, 208595), (470, 166876), (940, 83438), (1880, 41719)]