20512374040

素因数分解:

$2^3\times 5^1\times {\mathrm{13267}}^1\times {\mathrm{38653}}^1$

素因数の和:51931

約数の個数: 32

約数和(自身を含む): 46157514480

約数和(自身を除く): 25645140440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13267, 26534, 38653, 53068, 66335, 77306, 106136, 132670, 154612, 193265, 265340, 309224, 386530, 530680, 773060, 1546120, 512809351, 1025618702, 2051237404, 2564046755, 4102474808, 5128093510, 10256187020, 20512374040]

約数ペア:

[(1, 20512374040), (2, 10256187020), (4, 5128093510), (5, 4102474808), (8, 2564046755), (10, 2051237404), (20, 1025618702), (40, 512809351), (13267, 1546120), (26534, 773060), (38653, 530680), (53068, 386530), (66335, 309224), (77306, 265340), (106136, 193265), (132670, 154612)]