1971664580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{126551}}^1$

素因数の和:126620

約数の個数: 48

約数和(自身を含む): 4464754560

約数和(自身を除く): 2493089980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 126551, 253102, 506204, 632755, 1265510, 2404469, 2531020, 4808938, 5188591, 9617876, 10377182, 12022345, 20754364, 24044690, 25942955, 48089380, 51885910, 98583229, 103771820, 197166458, 394332916, 492916145, 985832290, 1971664580]

約数ペア:

[(1, 1971664580), (2, 985832290), (4, 492916145), (5, 394332916), (10, 197166458), (19, 103771820), (20, 98583229), (38, 51885910), (41, 48089380), (76, 25942955), (82, 24044690), (95, 20754364), (164, 12022345), (190, 10377182), (205, 9617876), (380, 5188591), (410, 4808938), (779, 2531020), (820, 2404469), (1558, 1265510), (3116, 632755), (3895, 506204), (7790, 253102), (15580, 126551)]