20161326512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{200363}}^1$

素因数の和:200721

約数の個数: 40

約数和(自身を含む): 41242925760

約数和(自身を除く): 21081599248

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 331, 662, 1324, 2648, 5296, 6289, 12578, 25156, 50312, 100624, 200363, 400726, 801452, 1602904, 3205808, 3806897, 7613794, 15227588, 30455176, 60910352, 66320153, 132640306, 265280612, 530561224, 1061122448, 1260082907, 2520165814, 5040331628, 10080663256, 20161326512]

約数ペア:

[(1, 20161326512), (2, 10080663256), (4, 5040331628), (8, 2520165814), (16, 1260082907), (19, 1061122448), (38, 530561224), (76, 265280612), (152, 132640306), (304, 66320153), (331, 60910352), (662, 30455176), (1324, 15227588), (2648, 7613794), (5296, 3806897), (6289, 3205808), (12578, 1602904), (25156, 801452), (50312, 400726), (100624, 200363)]