27998900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6829}}^1$

素因数の和:6884

約数の個数: 36

約数和(自身を含む): 62248620

約数和(自身を除く): 34249720

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6829, 13658, 27316, 34145, 68290, 136580, 170725, 279989, 341450, 559978, 682900, 1119956, 1399945, 2799890, 5599780, 6999725, 13999450, 27998900]

約数ペア:

[(1, 27998900), (2, 13999450), (4, 6999725), (5, 5599780), (10, 2799890), (20, 1399945), (25, 1119956), (41, 682900), (50, 559978), (82, 341450), (100, 279989), (164, 170725), (205, 136580), (410, 68290), (820, 34145), (1025, 27316), (2050, 13658), (4100, 6829)]