18803950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 19765010

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 179, 191, 275, 358, 382, 550, 895, 955, 1790, 1910, 1969, 2101, 3938, 4202, 4475, 4775, 8950, 9550, 9845, 10505, 19690, 21010, 34189, 49225, 52525, 68378, 98450, 105050, 170945, 341890, 376079, 752158, 854725, 1709450, 1880395, 3760790, 9401975, 18803950]

約数ペア:

[(1, 18803950), (2, 9401975), (5, 3760790), (10, 1880395), (11, 1709450), (22, 854725), (25, 752158), (50, 376079), (55, 341890), (110, 170945), (179, 105050), (191, 98450), (275, 68378), (358, 52525), (382, 49225), (550, 34189), (895, 21010), (955, 19690), (1790, 10505), (1910, 9845), (1969, 9550), (2101, 8950), (3938, 4775), (4202, 4475)]