20268440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26669}}^1$

素因数の和:26699

約数の個数: 32

約数和(自身を含む): 48006000

約数和(自身を除く): 27737560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26669, 53338, 106676, 133345, 213352, 266690, 506711, 533380, 1013422, 1066760, 2026844, 2533555, 4053688, 5067110, 10134220, 20268440]

約数ペア:

[(1, 20268440), (2, 10134220), (4, 5067110), (5, 4053688), (8, 2533555), (10, 2026844), (19, 1066760), (20, 1013422), (38, 533380), (40, 506711), (76, 266690), (95, 213352), (152, 133345), (190, 106676), (380, 53338), (760, 26669)]