648414560

素因数分解:

$2^5\times 5^1\times {\mathrm{661}}^1\times {\mathrm{6131}}^1$

素因数の和:6807

約数の個数: 48

約数和(自身を含む): 1534447152

約数和(自身を除く): 886032592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 661, 1322, 2644, 3305, 5288, 6131, 6610, 10576, 12262, 13220, 21152, 24524, 26440, 30655, 49048, 52880, 61310, 98096, 105760, 122620, 196192, 245240, 490480, 980960, 4052591, 8105182, 16210364, 20262955, 32420728, 40525910, 64841456, 81051820, 129682912, 162103640, 324207280, 648414560]

約数ペア:

[(1, 648414560), (2, 324207280), (4, 162103640), (5, 129682912), (8, 81051820), (10, 64841456), (16, 40525910), (20, 32420728), (32, 20262955), (40, 16210364), (80, 8105182), (160, 4052591), (661, 980960), (1322, 490480), (2644, 245240), (3305, 196192), (5288, 122620), (6131, 105760), (6610, 98096), (10576, 61310), (12262, 52880), (13220, 49048), (21152, 30655), (24524, 26440)]