20801472804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{130817}}^1$

素因数の和:131465

約数の個数: 72

約数和(自身を含む): 60188838528

約数和(自身を除く): 39387365724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 631, 1262, 1893, 2524, 3786, 4417, 5679, 7572, 8834, 11358, 13251, 17668, 22716, 26502, 39753, 53004, 79506, 130817, 159012, 261634, 392451, 523268, 784902, 915719, 1177353, 1569804, 1831438, 2354706, 2747157, 3662876, 4709412, 5494314, 8241471, 10988628, 16482942, 32965884, 82545527, 165091054, 247636581, 330182108, 495273162, 577818689, 742909743, 990546324, 1155637378, 1485819486, 1733456067, 2311274756, 2971638972, 3466912134, 5200368201, 6933824268, 10400736402, 20801472804]

約数ペア:

[(1, 20801472804), (2, 10400736402), (3, 6933824268), (4, 5200368201), (6, 3466912134), (7, 2971638972), (9, 2311274756), (12, 1733456067), (14, 1485819486), (18, 1155637378), (21, 990546324), (28, 742909743), (36, 577818689), (42, 495273162), (63, 330182108), (84, 247636581), (126, 165091054), (252, 82545527), (631, 32965884), (1262, 16482942), (1893, 10988628), (2524, 8241471), (3786, 5494314), (4417, 4709412), (5679, 3662876), (7572, 2747157), (8834, 2354706), (11358, 1831438), (13251, 1569804), (17668, 1177353), (22716, 915719), (26502, 784902), (39753, 523268), (53004, 392451), (79506, 261634), (130817, 159012)]