398445740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 144

約数和(自身を含む): 1077517056

約数和(自身を除く): 679071316

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 121, 140, 154, 172, 215, 220, 242, 301, 308, 385, 430, 473, 484, 547, 602, 605, 770, 847, 860, 946, 1094, 1204, 1210, 1505, 1540, 1694, 1892, 2188, 2365, 2420, 2735, 3010, 3311, 3388, 3829, 4235, 4730, 5203, 5470, 6017, 6020, 6622, 7658, 8470, 9460, 10406, 10940, 12034, 13244, 15316, 16555, 16940, 19145, 20812, 23521, 24068, 26015, 30085, 33110, 36421, 38290, 42119, 47042, 52030, 60170, 66187, 66220, 72842, 76580, 84238, 94084, 104060, 117605, 120340, 132374, 145684, 164647, 168476, 182105, 210595, 235210, 258731, 264748, 329294, 330935, 364210, 421190, 463309, 470420, 517462, 658588, 661870, 728420, 823235, 842380, 926618, 1034924, 1293655, 1323740, 1646470, 1811117, 1853236, 2316545, 2587310, 2846041, 3292940, 3622234, 4633090, 5174620, 5692082, 7244468, 9055585, 9266180, 11384164, 14230205, 18111170, 19922287, 28460410, 36222340, 39844574, 56920820, 79689148, 99611435, 199222870, 398445740]

約数ペア:

[(1, 398445740), (2, 199222870), (4, 99611435), (5, 79689148), (7, 56920820), (10, 39844574), (11, 36222340), (14, 28460410), (20, 19922287), (22, 18111170), (28, 14230205), (35, 11384164), (43, 9266180), (44, 9055585), (55, 7244468), (70, 5692082), (77, 5174620), (86, 4633090), (110, 3622234), (121, 3292940), (140, 2846041), (154, 2587310), (172, 2316545), (215, 1853236), (220, 1811117), (242, 1646470), (301, 1323740), (308, 1293655), (385, 1034924), (430, 926618), (473, 842380), (484, 823235), (547, 728420), (602, 661870), (605, 658588), (770, 517462), (847, 470420), (860, 463309), (946, 421190), (1094, 364210), (1204, 330935), (1210, 329294), (1505, 264748), (1540, 258731), (1694, 235210), (1892, 210595), (2188, 182105), (2365, 168476), (2420, 164647), (2735, 145684), (3010, 132374), (3311, 120340), (3388, 117605), (3829, 104060), (4235, 94084), (4730, 84238), (5203, 76580), (5470, 72842), (6017, 66220), (6020, 66187), (6622, 60170), (7658, 52030), (8470, 47042), (9460, 42119), (10406, 38290), (10940, 36421), (12034, 33110), (13244, 30085), (15316, 26015), (16555, 24068), (16940, 23521), (19145, 20812)]