829948900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{919}}^1$

素因数の和:1765

約数の個数: 72

約数和(自身を含む): 1969248960

約数和(自身を除く): 1139300060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 821, 919, 1100, 1642, 1838, 3284, 3676, 4105, 4595, 8210, 9031, 9190, 10109, 16420, 18062, 18380, 20218, 20525, 22975, 36124, 40436, 41050, 45155, 45950, 50545, 82100, 90310, 91900, 101090, 180620, 202180, 225775, 252725, 451550, 505450, 754499, 903100, 1010900, 1508998, 3017996, 3772495, 7544990, 8299489, 15089980, 16598978, 18862475, 33197956, 37724950, 41497445, 75449900, 82994890, 165989780, 207487225, 414974450, 829948900]

約数ペア:

[(1, 829948900), (2, 414974450), (4, 207487225), (5, 165989780), (10, 82994890), (11, 75449900), (20, 41497445), (22, 37724950), (25, 33197956), (44, 18862475), (50, 16598978), (55, 15089980), (100, 8299489), (110, 7544990), (220, 3772495), (275, 3017996), (550, 1508998), (821, 1010900), (919, 903100), (1100, 754499), (1642, 505450), (1838, 451550), (3284, 252725), (3676, 225775), (4105, 202180), (4595, 180620), (8210, 101090), (9031, 91900), (9190, 90310), (10109, 82100), (16420, 50545), (18062, 45950), (18380, 45155), (20218, 41050), (20525, 40436), (22975, 36124)]