20835320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47353}}^1$

素因数の和:47375

約数の個数: 32

約数和(自身を含む): 51142320

約数和(自身を除く): 30307000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47353, 94706, 189412, 236765, 378824, 473530, 520883, 947060, 1041766, 1894120, 2083532, 2604415, 4167064, 5208830, 10417660, 20835320]

約数ペア:

[(1, 20835320), (2, 10417660), (4, 5208830), (5, 4167064), (8, 2604415), (10, 2083532), (11, 1894120), (20, 1041766), (22, 947060), (40, 520883), (44, 473530), (55, 378824), (88, 236765), (110, 189412), (220, 94706), (440, 47353)]