18910640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33769}}^1$

素因数の和:33789

約数の個数: 40

約数和(自身を含む): 50249760

約数和(自身を除く): 31339120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33769, 67538, 135076, 168845, 236383, 270152, 337690, 472766, 540304, 675380, 945532, 1181915, 1350760, 1891064, 2363830, 2701520, 3782128, 4727660, 9455320, 18910640]

約数ペア:

[(1, 18910640), (2, 9455320), (4, 4727660), (5, 3782128), (7, 2701520), (8, 2363830), (10, 1891064), (14, 1350760), (16, 1181915), (20, 945532), (28, 675380), (35, 540304), (40, 472766), (56, 337690), (70, 270152), (80, 236383), (112, 168845), (140, 135076), (280, 67538), (560, 33769)]