18897400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4973}}^1$

素因数の和:5008

約数の個数: 48

約数和(自身を含む): 46258200

約数和(自身を除く): 27360800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 4973, 9946, 19892, 24865, 39784, 49730, 94487, 99460, 124325, 188974, 198920, 248650, 377948, 472435, 497300, 755896, 944870, 994600, 1889740, 2362175, 3779480, 4724350, 9448700, 18897400]

約数ペア:

[(1, 18897400), (2, 9448700), (4, 4724350), (5, 3779480), (8, 2362175), (10, 1889740), (19, 994600), (20, 944870), (25, 755896), (38, 497300), (40, 472435), (50, 377948), (76, 248650), (95, 198920), (100, 188974), (152, 124325), (190, 99460), (200, 94487), (380, 49730), (475, 39784), (760, 24865), (950, 19892), (1900, 9946), (3800, 4973)]