39685720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13591}}^1$

素因数の和:13675

約数の個数: 32

約数和(自身を含む): 90522720

約数和(自身を除く): 50837000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 13591, 27182, 54364, 67955, 108728, 135910, 271820, 543640, 992143, 1984286, 3968572, 4960715, 7937144, 9921430, 19842860, 39685720]

約数ペア:

[(1, 39685720), (2, 19842860), (4, 9921430), (5, 7937144), (8, 4960715), (10, 3968572), (20, 1984286), (40, 992143), (73, 543640), (146, 271820), (292, 135910), (365, 108728), (584, 67955), (730, 54364), (1460, 27182), (2920, 13591)]