20358100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 51107840

約数和(自身を除く): 30749740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 127, 140, 175, 229, 254, 350, 458, 508, 635, 700, 889, 916, 1145, 1270, 1603, 1778, 2290, 2540, 3175, 3206, 3556, 4445, 4580, 5725, 6350, 6412, 8015, 8890, 11450, 12700, 16030, 17780, 22225, 22900, 29083, 32060, 40075, 44450, 58166, 80150, 88900, 116332, 145415, 160300, 203581, 290830, 407162, 581660, 727075, 814324, 1017905, 1454150, 2035810, 2908300, 4071620, 5089525, 10179050, 20358100]

約数ペア:

[(1, 20358100), (2, 10179050), (4, 5089525), (5, 4071620), (7, 2908300), (10, 2035810), (14, 1454150), (20, 1017905), (25, 814324), (28, 727075), (35, 581660), (50, 407162), (70, 290830), (100, 203581), (127, 160300), (140, 145415), (175, 116332), (229, 88900), (254, 80150), (350, 58166), (458, 44450), (508, 40075), (635, 32060), (700, 29083), (889, 22900), (916, 22225), (1145, 17780), (1270, 16030), (1603, 12700), (1778, 11450), (2290, 8890), (2540, 8015), (3175, 6412), (3206, 6350), (3556, 5725), (4445, 4580)]