11981020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 27165600

約数和(自身を除く): 15184580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 769, 779, 820, 1538, 1558, 3076, 3116, 3845, 3895, 7690, 7790, 14611, 15380, 15580, 29222, 31529, 58444, 63058, 73055, 126116, 146110, 157645, 292220, 315290, 599051, 630580, 1198102, 2396204, 2995255, 5990510, 11981020]

約数ペア:

[(1, 11981020), (2, 5990510), (4, 2995255), (5, 2396204), (10, 1198102), (19, 630580), (20, 599051), (38, 315290), (41, 292220), (76, 157645), (82, 146110), (95, 126116), (164, 73055), (190, 63058), (205, 58444), (380, 31529), (410, 29222), (769, 15580), (779, 15380), (820, 14611), (1538, 7790), (1558, 7690), (3076, 3895), (3116, 3845)]