42165890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10463}}^1$

素因数の和:10514

約数の個数: 32

約数和(自身を含む): 84381696

約数和(自身を除く): 42215806

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 10463, 20926, 52315, 104630, 136019, 272038, 324353, 648706, 680095, 1360190, 1621765, 3243530, 4216589, 8433178, 21082945, 42165890]

約数ペア:

[(1, 42165890), (2, 21082945), (5, 8433178), (10, 4216589), (13, 3243530), (26, 1621765), (31, 1360190), (62, 680095), (65, 648706), (130, 324353), (155, 272038), (310, 136019), (403, 104630), (806, 52315), (2015, 20926), (4030, 10463)]