51418640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1049

約数の個数: 120

約数和(自身を含む): 149912280

約数和(自身を除く): 98493640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1009, 1040, 1274, 1456, 1820, 1960, 2018, 2548, 3185, 3640, 3920, 4036, 5045, 5096, 6370, 7063, 7280, 8072, 10090, 10192, 12740, 13117, 14126, 16144, 20180, 25480, 26234, 28252, 35315, 40360, 49441, 50960, 52468, 56504, 65585, 70630, 80720, 91819, 98882, 104936, 113008, 131170, 141260, 183638, 197764, 209872, 247205, 262340, 282520, 367276, 395528, 459095, 494410, 524680, 565040, 642733, 734552, 791056, 918190, 988820, 1049360, 1285466, 1469104, 1836380, 1977640, 2570932, 3213665, 3672760, 3955280, 5141864, 6427330, 7345520, 10283728, 12854660, 25709320, 51418640]

約数ペア:

[(1, 51418640), (2, 25709320), (4, 12854660), (5, 10283728), (7, 7345520), (8, 6427330), (10, 5141864), (13, 3955280), (14, 3672760), (16, 3213665), (20, 2570932), (26, 1977640), (28, 1836380), (35, 1469104), (40, 1285466), (49, 1049360), (52, 988820), (56, 918190), (65, 791056), (70, 734552), (80, 642733), (91, 565040), (98, 524680), (104, 494410), (112, 459095), (130, 395528), (140, 367276), (182, 282520), (196, 262340), (208, 247205), (245, 209872), (260, 197764), (280, 183638), (364, 141260), (392, 131170), (455, 113008), (490, 104936), (520, 98882), (560, 91819), (637, 80720), (728, 70630), (784, 65585), (910, 56504), (980, 52468), (1009, 50960), (1040, 49441), (1274, 40360), (1456, 35315), (1820, 28252), (1960, 26234), (2018, 25480), (2548, 20180), (3185, 16144), (3640, 14126), (3920, 13117), (4036, 12740), (5045, 10192), (5096, 10090), (6370, 8072), (7063, 7280)]