28084700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{757}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 71057952

約数和(自身を除く): 42973252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 530, 700, 742, 757, 1060, 1325, 1484, 1514, 1855, 2650, 3028, 3710, 3785, 5299, 5300, 7420, 7570, 9275, 10598, 15140, 18550, 18925, 21196, 26495, 37100, 37850, 40121, 52990, 75700, 80242, 105980, 132475, 160484, 200605, 264950, 280847, 401210, 529900, 561694, 802420, 1003025, 1123388, 1404235, 2006050, 2808470, 4012100, 5616940, 7021175, 14042350, 28084700]

約数ペア:

[(1, 28084700), (2, 14042350), (4, 7021175), (5, 5616940), (7, 4012100), (10, 2808470), (14, 2006050), (20, 1404235), (25, 1123388), (28, 1003025), (35, 802420), (50, 561694), (53, 529900), (70, 401210), (100, 280847), (106, 264950), (140, 200605), (175, 160484), (212, 132475), (265, 105980), (350, 80242), (371, 75700), (530, 52990), (700, 40121), (742, 37850), (757, 37100), (1060, 26495), (1325, 21196), (1484, 18925), (1514, 18550), (1855, 15140), (2650, 10598), (3028, 9275), (3710, 7570), (3785, 7420), (5299, 5300)]