209968990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9403}}^1$

素因数の和:9457

約数の個数: 64

約数和(自身を含む): 487503360

約数和(自身を除く): 277534370

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 110, 145, 154, 203, 290, 319, 385, 406, 638, 770, 1015, 1595, 2030, 2233, 3190, 4466, 9403, 11165, 18806, 22330, 47015, 65821, 94030, 103433, 131642, 206866, 272687, 329105, 517165, 545374, 658210, 724031, 1034330, 1363435, 1448062, 1908809, 2726870, 2999557, 3620155, 3817618, 5999114, 7240310, 9544045, 14997785, 19088090, 20996899, 29995570, 41993798, 104984495, 209968990]

約数ペア:

[(1, 209968990), (2, 104984495), (5, 41993798), (7, 29995570), (10, 20996899), (11, 19088090), (14, 14997785), (22, 9544045), (29, 7240310), (35, 5999114), (55, 3817618), (58, 3620155), (70, 2999557), (77, 2726870), (110, 1908809), (145, 1448062), (154, 1363435), (203, 1034330), (290, 724031), (319, 658210), (385, 545374), (406, 517165), (638, 329105), (770, 272687), (1015, 206866), (1595, 131642), (2030, 103433), (2233, 94030), (3190, 65821), (4466, 47015), (9403, 22330), (11165, 18806)]