210661780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2087}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 519861888

約数和(自身を除く): 309200108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 2060, 2087, 2884, 3605, 4174, 5047, 7210, 8348, 10094, 10435, 14420, 14609, 20188, 20870, 25235, 29218, 41740, 50470, 58436, 73045, 100940, 102263, 146090, 204526, 214961, 292180, 409052, 429922, 511315, 859844, 1022630, 1074805, 1504727, 2045260, 2149610, 3009454, 4299220, 6018908, 7523635, 10533089, 15047270, 21066178, 30094540, 42132356, 52665445, 105330890, 210661780]

約数ペア:

[(1, 210661780), (2, 105330890), (4, 52665445), (5, 42132356), (7, 30094540), (10, 21066178), (14, 15047270), (20, 10533089), (28, 7523635), (35, 6018908), (49, 4299220), (70, 3009454), (98, 2149610), (103, 2045260), (140, 1504727), (196, 1074805), (206, 1022630), (245, 859844), (412, 511315), (490, 429922), (515, 409052), (721, 292180), (980, 214961), (1030, 204526), (1442, 146090), (2060, 102263), (2087, 100940), (2884, 73045), (3605, 58436), (4174, 50470), (5047, 41740), (7210, 29218), (8348, 25235), (10094, 20870), (10435, 20188), (14420, 14609)]