999320740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{63977}}^1$

素因数の和:64068

約数の個数: 48

約数和(自身を含む): 2321633664

約数和(自身を除く): 1322312924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 63977, 127954, 255908, 319885, 639770, 703747, 1279540, 1407494, 2814988, 3518735, 4542367, 7037470, 9084734, 14074940, 18169468, 22711835, 45423670, 49966037, 90847340, 99932074, 199864148, 249830185, 499660370, 999320740]

約数ペア:

[(1, 999320740), (2, 499660370), (4, 249830185), (5, 199864148), (10, 99932074), (11, 90847340), (20, 49966037), (22, 45423670), (44, 22711835), (55, 18169468), (71, 14074940), (110, 9084734), (142, 7037470), (220, 4542367), (284, 3518735), (355, 2814988), (710, 1407494), (781, 1279540), (1420, 703747), (1562, 639770), (3124, 319885), (3905, 255908), (7810, 127954), (15620, 63977)]