20692700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 108

約数和(自身を含む): 54027792

約数和(自身を除く): 33335092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 49, 50, 70, 82, 98, 100, 103, 140, 164, 175, 196, 205, 206, 245, 287, 350, 410, 412, 490, 515, 574, 700, 721, 820, 980, 1025, 1030, 1148, 1225, 1435, 1442, 2009, 2050, 2060, 2450, 2575, 2870, 2884, 3605, 4018, 4100, 4223, 4900, 5047, 5150, 5740, 7175, 7210, 8036, 8446, 10045, 10094, 10300, 14350, 14420, 16892, 18025, 20090, 20188, 21115, 25235, 28700, 29561, 36050, 40180, 42230, 50225, 50470, 59122, 72100, 84460, 100450, 100940, 105575, 118244, 126175, 147805, 200900, 206927, 211150, 252350, 295610, 413854, 422300, 504700, 591220, 739025, 827708, 1034635, 1478050, 2069270, 2956100, 4138540, 5173175, 10346350, 20692700]

約数ペア:

[(1, 20692700), (2, 10346350), (4, 5173175), (5, 4138540), (7, 2956100), (10, 2069270), (14, 1478050), (20, 1034635), (25, 827708), (28, 739025), (35, 591220), (41, 504700), (49, 422300), (50, 413854), (70, 295610), (82, 252350), (98, 211150), (100, 206927), (103, 200900), (140, 147805), (164, 126175), (175, 118244), (196, 105575), (205, 100940), (206, 100450), (245, 84460), (287, 72100), (350, 59122), (410, 50470), (412, 50225), (490, 42230), (515, 40180), (574, 36050), (700, 29561), (721, 28700), (820, 25235), (980, 21115), (1025, 20188), (1030, 20090), (1148, 18025), (1225, 16892), (1435, 14420), (1442, 14350), (2009, 10300), (2050, 10094), (2060, 10045), (2450, 8446), (2575, 8036), (2870, 7210), (2884, 7175), (3605, 5740), (4018, 5150), (4100, 5047), (4223, 4900)]