1640672435180

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{769}}^1\times {\mathrm{209579}}^1$

素因数の和:210866

約数の個数: 48

約数和(自身を含む): 3456686772000

約数和(自身を除く): 1816014336820

約数列:

[1, 2, 4, 5, 10, 20, 509, 769, 1018, 1538, 2036, 2545, 3076, 3845, 5090, 7690, 10180, 15380, 209579, 391421, 419158, 782842, 838316, 1047895, 1565684, 1957105, 2095790, 3914210, 4191580, 7828420, 106675711, 161166251, 213351422, 322332502, 426702844, 533378555, 644665004, 805831255, 1066757110, 1611662510, 2133514220, 3223325020, 82033621759, 164067243518, 328134487036, 410168108795, 820336217590, 1640672435180]

約数ペア:

[(1, 1640672435180), (2, 820336217590), (4, 410168108795), (5, 328134487036), (10, 164067243518), (20, 82033621759), (509, 3223325020), (769, 2133514220), (1018, 1611662510), (1538, 1066757110), (2036, 805831255), (2545, 644665004), (3076, 533378555), (3845, 426702844), (5090, 322332502), (7690, 213351422), (10180, 161166251), (15380, 106675711), (209579, 7828420), (391421, 4191580), (419158, 3914210), (782842, 2095790), (838316, 1957105), (1047895, 1565684)]