52130140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 111966624

約数和(自身を除く): 59836484

約数列:

[1, 2, 4, 5, 10, 20, 101, 131, 197, 202, 262, 394, 404, 505, 524, 655, 788, 985, 1010, 1310, 1970, 2020, 2620, 3940, 13231, 19897, 25807, 26462, 39794, 51614, 52924, 66155, 79588, 99485, 103228, 129035, 132310, 198970, 258070, 264620, 397940, 516140, 2606507, 5213014, 10426028, 13032535, 26065070, 52130140]

約数ペア:

[(1, 52130140), (2, 26065070), (4, 13032535), (5, 10426028), (10, 5213014), (20, 2606507), (101, 516140), (131, 397940), (197, 264620), (202, 258070), (262, 198970), (394, 132310), (404, 129035), (505, 103228), (524, 99485), (655, 79588), (788, 66155), (985, 52924), (1010, 51614), (1310, 39794), (1970, 26462), (2020, 25807), (2620, 19897), (3940, 13231)]