686142668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{743}}^1$

素因数の和:1214

約数の個数: 48

約数和(自身を含む): 1312416000

約数和(自身を除く): 626273332

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 419, 551, 743, 838, 1102, 1486, 1676, 2204, 2972, 7961, 12151, 14117, 15922, 21547, 24302, 28234, 31844, 43094, 48604, 56468, 86188, 230869, 311317, 409393, 461738, 622634, 818786, 923476, 1245268, 1637572, 5915023, 9028193, 11830046, 18056386, 23660092, 36112772, 171535667, 343071334, 686142668]

約数ペア:

[(1, 686142668), (2, 343071334), (4, 171535667), (19, 36112772), (29, 23660092), (38, 18056386), (58, 11830046), (76, 9028193), (116, 5915023), (419, 1637572), (551, 1245268), (743, 923476), (838, 818786), (1102, 622634), (1486, 461738), (1676, 409393), (2204, 311317), (2972, 230869), (7961, 86188), (12151, 56468), (14117, 48604), (15922, 43094), (21547, 31844), (24302, 28234)]