42488290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 85591296

約数和(自身を除く): 43103006

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 811, 845, 1622, 1690, 2015, 4030, 4055, 5239, 8110, 10478, 10543, 21086, 25141, 26195, 50282, 52390, 52715, 105430, 125705, 137059, 251410, 274118, 326833, 653666, 685295, 1370590, 1634165, 3268330, 4248829, 8497658, 21244145, 42488290]

約数ペア:

[(1, 42488290), (2, 21244145), (5, 8497658), (10, 4248829), (13, 3268330), (26, 1634165), (31, 1370590), (62, 685295), (65, 653666), (130, 326833), (155, 274118), (169, 251410), (310, 137059), (338, 125705), (403, 105430), (806, 52715), (811, 52390), (845, 50282), (1622, 26195), (1690, 25141), (2015, 21086), (4030, 10543), (4055, 10478), (5239, 8110)]