20895280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37313}}^1$

素因数の和:37333

約数の個数: 40

約数和(自身を含む): 55523232

約数和(自身を除く): 34627952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37313, 74626, 149252, 186565, 261191, 298504, 373130, 522382, 597008, 746260, 1044764, 1305955, 1492520, 2089528, 2611910, 2985040, 4179056, 5223820, 10447640, 20895280]

約数ペア:

[(1, 20895280), (2, 10447640), (4, 5223820), (5, 4179056), (7, 2985040), (8, 2611910), (10, 2089528), (14, 1492520), (16, 1305955), (20, 1044764), (28, 746260), (35, 597008), (40, 522382), (56, 373130), (70, 298504), (80, 261191), (112, 186565), (140, 149252), (280, 74626), (560, 37313)]