858162920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{1249}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 1964250000

約数和(自身を除く): 1106087080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 193, 356, 386, 445, 712, 772, 890, 965, 1249, 1544, 1780, 1930, 2498, 3560, 3860, 4996, 6245, 7720, 9992, 12490, 17177, 24980, 34354, 49960, 68708, 85885, 111161, 137416, 171770, 222322, 241057, 343540, 444644, 482114, 555805, 687080, 889288, 964228, 1111610, 1205285, 1928456, 2223220, 2410570, 4446440, 4821140, 9642280, 21454073, 42908146, 85816292, 107270365, 171632584, 214540730, 429081460, 858162920]

約数ペア:

[(1, 858162920), (2, 429081460), (4, 214540730), (5, 171632584), (8, 107270365), (10, 85816292), (20, 42908146), (40, 21454073), (89, 9642280), (178, 4821140), (193, 4446440), (356, 2410570), (386, 2223220), (445, 1928456), (712, 1205285), (772, 1111610), (890, 964228), (965, 889288), (1249, 687080), (1544, 555805), (1780, 482114), (1930, 444644), (2498, 343540), (3560, 241057), (3860, 222322), (4996, 171770), (6245, 137416), (7720, 111161), (9992, 85885), (12490, 68708), (17177, 49960), (24980, 34354)]