138236140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{2011}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 332607744

約数和(自身を除く): 194371604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1964, 2011, 2455, 3437, 4022, 4910, 6874, 8044, 9820, 10055, 13748, 14077, 17185, 20110, 28154, 34370, 40220, 56308, 68740, 70385, 140770, 281540, 987401, 1974802, 3949604, 4937005, 6911807, 9874010, 13823614, 19748020, 27647228, 34559035, 69118070, 138236140]

約数ペア:

[(1, 138236140), (2, 69118070), (4, 34559035), (5, 27647228), (7, 19748020), (10, 13823614), (14, 9874010), (20, 6911807), (28, 4937005), (35, 3949604), (70, 1974802), (140, 987401), (491, 281540), (982, 140770), (1964, 70385), (2011, 68740), (2455, 56308), (3437, 40220), (4022, 34370), (4910, 28154), (6874, 20110), (8044, 17185), (9820, 14077), (10055, 13748)]