72027140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 154378224

約数和(自身を除く): 82351084

約数列:

[1, 2, 4, 5, 10, 20, 101, 181, 197, 202, 362, 394, 404, 505, 724, 788, 905, 985, 1010, 1810, 1970, 2020, 3620, 3940, 18281, 19897, 35657, 36562, 39794, 71314, 73124, 79588, 91405, 99485, 142628, 178285, 182810, 198970, 356570, 365620, 397940, 713140, 3601357, 7202714, 14405428, 18006785, 36013570, 72027140]

約数ペア:

[(1, 72027140), (2, 36013570), (4, 18006785), (5, 14405428), (10, 7202714), (20, 3601357), (101, 713140), (181, 397940), (197, 365620), (202, 356570), (362, 198970), (394, 182810), (404, 178285), (505, 142628), (724, 99485), (788, 91405), (905, 79588), (985, 73124), (1010, 71314), (1810, 39794), (1970, 36562), (2020, 35657), (3620, 19897), (3940, 18281)]