20164540040

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1\times {\mathrm{4817}}^1$

素因数の和:5514

約数の個数: 64

約数和(自身を含む): 45677530800

約数和(自身を除く): 25512990760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 457, 458, 914, 916, 1145, 1828, 1832, 2285, 2290, 3656, 4570, 4580, 4817, 9140, 9160, 9634, 18280, 19268, 24085, 38536, 48170, 96340, 104653, 192680, 209306, 418612, 523265, 837224, 1046530, 1103093, 2093060, 2201369, 2206186, 4186120, 4402738, 4412372, 5515465, 8805476, 8824744, 11006845, 11030930, 17610952, 22013690, 22061860, 44027380, 44123720, 88054760, 504113501, 1008227002, 2016454004, 2520567505, 4032908008, 5041135010, 10082270020, 20164540040]

約数ペア:

[(1, 20164540040), (2, 10082270020), (4, 5041135010), (5, 4032908008), (8, 2520567505), (10, 2016454004), (20, 1008227002), (40, 504113501), (229, 88054760), (457, 44123720), (458, 44027380), (914, 22061860), (916, 22013690), (1145, 17610952), (1828, 11030930), (1832, 11006845), (2285, 8824744), (2290, 8805476), (3656, 5515465), (4570, 4412372), (4580, 4402738), (4817, 4186120), (9140, 2206186), (9160, 2201369), (9634, 2093060), (18280, 1103093), (19268, 1046530), (24085, 837224), (38536, 523265), (48170, 418612), (96340, 209306), (104653, 192680)]