20121662008

素因数分解:

$2^3\times 7^1\times {\mathrm{349}}^1\times {\mathrm{449}}^1\times {\mathrm{2293}}^1$

素因数の和:3104

約数の個数: 64

約数和(自身を含む): 43356600000

約数和(自身を除く): 23234937992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 349, 449, 698, 898, 1396, 1796, 2293, 2443, 2792, 3143, 3592, 4586, 4886, 6286, 9172, 9772, 12572, 16051, 18344, 19544, 25144, 32102, 64204, 128408, 156701, 313402, 626804, 800257, 1029557, 1096907, 1253608, 1600514, 2059114, 2193814, 3201028, 4118228, 4387628, 5601799, 6402056, 7206899, 8236456, 8775256, 11203598, 14413798, 22407196, 28827596, 44814392, 57655192, 359315393, 718630786, 1437261572, 2515207751, 2874523144, 5030415502, 10060831004, 20121662008]

約数ペア:

[(1, 20121662008), (2, 10060831004), (4, 5030415502), (7, 2874523144), (8, 2515207751), (14, 1437261572), (28, 718630786), (56, 359315393), (349, 57655192), (449, 44814392), (698, 28827596), (898, 22407196), (1396, 14413798), (1796, 11203598), (2293, 8775256), (2443, 8236456), (2792, 7206899), (3143, 6402056), (3592, 5601799), (4586, 4387628), (4886, 4118228), (6286, 3201028), (9172, 2193814), (9772, 2059114), (12572, 1600514), (16051, 1253608), (18344, 1096907), (19544, 1029557), (25144, 800257), (32102, 626804), (64204, 313402), (128408, 156701)]