66448880

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8563}}^1$

素因数の和:8673

約数の個数: 40

約数和(自身を含む): 156104592

約数和(自身を除く): 89655712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 8563, 17126, 34252, 42815, 68504, 85630, 137008, 171260, 342520, 685040, 830611, 1661222, 3322444, 4153055, 6644888, 8306110, 13289776, 16612220, 33224440, 66448880]

約数ペア:

[(1, 66448880), (2, 33224440), (4, 16612220), (5, 13289776), (8, 8306110), (10, 6644888), (16, 4153055), (20, 3322444), (40, 1661222), (80, 830611), (97, 685040), (194, 342520), (388, 171260), (485, 137008), (776, 85630), (970, 68504), (1552, 42815), (1940, 34252), (3880, 17126), (7760, 8563)]