1228780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 3015936

約数和(自身を除く): 1787156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 131, 134, 140, 262, 268, 335, 469, 524, 655, 670, 917, 938, 1310, 1340, 1834, 1876, 2345, 2620, 3668, 4585, 4690, 8777, 9170, 9380, 17554, 18340, 35108, 43885, 61439, 87770, 122878, 175540, 245756, 307195, 614390, 1228780]

約数ペア:

[(1, 1228780), (2, 614390), (4, 307195), (5, 245756), (7, 175540), (10, 122878), (14, 87770), (20, 61439), (28, 43885), (35, 35108), (67, 18340), (70, 17554), (131, 9380), (134, 9170), (140, 8777), (262, 4690), (268, 4585), (335, 3668), (469, 2620), (524, 2345), (655, 1876), (670, 1834), (917, 1340), (938, 1310)]