718830160

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 1699891200

約数和(自身を除く): 981061040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 139, 254, 278, 508, 509, 556, 635, 695, 1016, 1018, 1112, 1270, 1390, 2032, 2036, 2224, 2540, 2545, 2780, 4072, 5080, 5090, 5560, 8144, 10160, 10180, 11120, 17653, 20360, 35306, 40720, 64643, 70612, 70751, 88265, 129286, 141224, 141502, 176530, 258572, 282448, 283004, 323215, 353060, 353755, 517144, 566008, 646430, 706120, 707510, 1034288, 1132016, 1292860, 1412240, 1415020, 2585720, 2830040, 5171440, 5660080, 8985377, 17970754, 35941508, 44926885, 71883016, 89853770, 143766032, 179707540, 359415080, 718830160]

約数ペア:

[(1, 718830160), (2, 359415080), (4, 179707540), (5, 143766032), (8, 89853770), (10, 71883016), (16, 44926885), (20, 35941508), (40, 17970754), (80, 8985377), (127, 5660080), (139, 5171440), (254, 2830040), (278, 2585720), (508, 1415020), (509, 1412240), (556, 1292860), (635, 1132016), (695, 1034288), (1016, 707510), (1018, 706120), (1112, 646430), (1270, 566008), (1390, 517144), (2032, 353755), (2036, 353060), (2224, 323215), (2540, 283004), (2545, 282448), (2780, 258572), (4072, 176530), (5080, 141502), (5090, 141224), (5560, 129286), (8144, 88265), (10160, 70751), (10180, 70612), (11120, 64643), (17653, 40720), (20360, 35306)]