39217720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^2$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 90893880

約数和(自身を除く): 51676160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 344, 430, 604, 755, 860, 1208, 1510, 1720, 3020, 6040, 6493, 12986, 22801, 25972, 32465, 45602, 51944, 64930, 91204, 114005, 129860, 182408, 228010, 259720, 456020, 912040, 980443, 1960886, 3921772, 4902215, 7843544, 9804430, 19608860, 39217720]

約数ペア:

[(1, 39217720), (2, 19608860), (4, 9804430), (5, 7843544), (8, 4902215), (10, 3921772), (20, 1960886), (40, 980443), (43, 912040), (86, 456020), (151, 259720), (172, 228010), (215, 182408), (302, 129860), (344, 114005), (430, 91204), (604, 64930), (755, 51944), (860, 45602), (1208, 32465), (1510, 25972), (1720, 22801), (3020, 12986), (6040, 6493)]