19792790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 17415370

約数列:

[1, 2, 5, 10, 29, 58, 131, 145, 262, 290, 521, 655, 1042, 1310, 2605, 3799, 5210, 7598, 15109, 18995, 30218, 37990, 68251, 75545, 136502, 151090, 341255, 682510, 1979279, 3958558, 9896395, 19792790]

約数ペア:

[(1, 19792790), (2, 9896395), (5, 3958558), (10, 1979279), (29, 682510), (58, 341255), (131, 151090), (145, 136502), (262, 75545), (290, 68251), (521, 37990), (655, 30218), (1042, 18995), (1310, 15109), (2605, 7598), (3799, 5210)]