68533780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{997}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 164981376

約数和(自身を除く): 96447596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 997, 1964, 1994, 2455, 3437, 3988, 4910, 4985, 6874, 6979, 9820, 9970, 13748, 13958, 17185, 19940, 27916, 34370, 34895, 68740, 69790, 139580, 489527, 979054, 1958108, 2447635, 3426689, 4895270, 6853378, 9790540, 13706756, 17133445, 34266890, 68533780]

約数ペア:

[(1, 68533780), (2, 34266890), (4, 17133445), (5, 13706756), (7, 9790540), (10, 6853378), (14, 4895270), (20, 3426689), (28, 2447635), (35, 1958108), (70, 979054), (140, 489527), (491, 139580), (982, 69790), (997, 68740), (1964, 34895), (1994, 34370), (2455, 27916), (3437, 19940), (3988, 17185), (4910, 13958), (4985, 13748), (6874, 9970), (6979, 9820)]