20258672

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{653}}^1$

素因数の和:945

約数の個数: 40

約数和(自身を含む): 45089376

約数和(自身を除く): 24830704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 653, 1108, 1306, 1939, 2216, 2612, 3878, 4432, 4571, 5224, 7756, 9142, 10448, 15512, 18284, 31024, 36568, 73136, 180881, 361762, 723524, 1266167, 1447048, 2532334, 2894096, 5064668, 10129336, 20258672]

約数ペア:

[(1, 20258672), (2, 10129336), (4, 5064668), (7, 2894096), (8, 2532334), (14, 1447048), (16, 1266167), (28, 723524), (56, 361762), (112, 180881), (277, 73136), (554, 36568), (653, 31024), (1108, 18284), (1306, 15512), (1939, 10448), (2216, 9142), (2612, 7756), (3878, 5224), (4432, 4571)]