28434320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8669}}^1$

素因数の和:8723

約数の個数: 40

約数和(自身を含む): 67730040

約数和(自身を除く): 39295720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8669, 17338, 34676, 43345, 69352, 86690, 138704, 173380, 346760, 355429, 693520, 710858, 1421716, 1777145, 2843432, 3554290, 5686864, 7108580, 14217160, 28434320]

約数ペア:

[(1, 28434320), (2, 14217160), (4, 7108580), (5, 5686864), (8, 3554290), (10, 2843432), (16, 1777145), (20, 1421716), (40, 710858), (41, 693520), (80, 355429), (82, 346760), (164, 173380), (205, 138704), (328, 86690), (410, 69352), (656, 43345), (820, 34676), (1640, 17338), (3280, 8669)]