222719750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{80989}}^1$

素因数の和:81017

約数の個数: 32

約数和(自身を含む): 454839840

約数和(自身を除く): 232120090

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 80989, 161978, 404945, 809890, 890879, 1781758, 2024725, 4049450, 4454395, 8908790, 10123625, 20247250, 22271975, 44543950, 111359875, 222719750]

約数ペア:

[(1, 222719750), (2, 111359875), (5, 44543950), (10, 22271975), (11, 20247250), (22, 10123625), (25, 8908790), (50, 4454395), (55, 4049450), (110, 2024725), (125, 1781758), (250, 890879), (275, 809890), (550, 404945), (1375, 161978), (2750, 80989)]