18122025

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 31497984

約数和(自身を除く): 13375959

約数列:

[1, 3, 5, 15, 25, 47, 53, 75, 97, 141, 159, 235, 265, 291, 485, 705, 795, 1175, 1325, 1455, 2425, 2491, 3525, 3975, 4559, 5141, 7275, 7473, 12455, 13677, 15423, 22795, 25705, 37365, 62275, 68385, 77115, 113975, 128525, 186825, 241627, 341925, 385575, 724881, 1208135, 3624405, 6040675, 18122025]

約数ペア:

[(1, 18122025), (3, 6040675), (5, 3624405), (15, 1208135), (25, 724881), (47, 385575), (53, 341925), (75, 241627), (97, 186825), (141, 128525), (159, 113975), (235, 77115), (265, 68385), (291, 62275), (485, 37365), (705, 25705), (795, 22795), (1175, 15423), (1325, 13677), (1455, 12455), (2425, 7473), (2491, 7275), (3525, 5141), (3975, 4559)]