28288400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{10103}}^1$

素因数の和:10128

約数の個数: 60

約数和(自身を含む): 77679552

約数和(自身を除く): 49391152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 10103, 20206, 40412, 50515, 70721, 80824, 101030, 141442, 161648, 202060, 252575, 282884, 353605, 404120, 505150, 565768, 707210, 808240, 1010300, 1131536, 1414420, 1768025, 2020600, 2828840, 3536050, 4041200, 5657680, 7072100, 14144200, 28288400]

約数ペア:

[(1, 28288400), (2, 14144200), (4, 7072100), (5, 5657680), (7, 4041200), (8, 3536050), (10, 2828840), (14, 2020600), (16, 1768025), (20, 1414420), (25, 1131536), (28, 1010300), (35, 808240), (40, 707210), (50, 565768), (56, 505150), (70, 404120), (80, 353605), (100, 282884), (112, 252575), (140, 202060), (175, 161648), (200, 141442), (280, 101030), (350, 80824), (400, 70721), (560, 50515), (700, 40412), (1400, 20206), (2800, 10103)]