197949400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89977}}^1$

素因数の和:90004

約数の個数: 48

約数和(自身を含む): 502077240

約数和(自身を除く): 304127840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 89977, 179954, 359908, 449885, 719816, 899770, 989747, 1799540, 1979494, 2249425, 3599080, 3958988, 4498850, 4948735, 7917976, 8997700, 9897470, 17995400, 19794940, 24743675, 39589880, 49487350, 98974700, 197949400]

約数ペア:

[(1, 197949400), (2, 98974700), (4, 49487350), (5, 39589880), (8, 24743675), (10, 19794940), (11, 17995400), (20, 9897470), (22, 8997700), (25, 7917976), (40, 4948735), (44, 4498850), (50, 3958988), (55, 3599080), (88, 2249425), (100, 1979494), (110, 1799540), (200, 989747), (220, 899770), (275, 719816), (440, 449885), (550, 359908), (1100, 179954), (2200, 89977)]