20494010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4157}}^1$

素因数の和:4210

約数の個数: 32

約数和(自身を含む): 40415760

約数和(自身を除く): 19921750

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4157, 4930, 8314, 20785, 41570, 70669, 120553, 141338, 241106, 353345, 602765, 706690, 1205530, 2049401, 4098802, 10247005, 20494010]

約数ペア:

[(1, 20494010), (2, 10247005), (5, 4098802), (10, 2049401), (17, 1205530), (29, 706690), (34, 602765), (58, 353345), (85, 241106), (145, 141338), (170, 120553), (290, 70669), (493, 41570), (986, 20785), (2465, 8314), (4157, 4930)]