20533456

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 41262984

約数和(自身を除く): 20729528

約数列:

[1, 2, 4, 8, 16, 41, 82, 113, 164, 226, 277, 328, 452, 554, 656, 904, 1108, 1808, 2216, 4432, 4633, 9266, 11357, 18532, 22714, 31301, 37064, 45428, 62602, 74128, 90856, 125204, 181712, 250408, 500816, 1283341, 2566682, 5133364, 10266728, 20533456]

約数ペア:

[(1, 20533456), (2, 10266728), (4, 5133364), (8, 2566682), (16, 1283341), (41, 500816), (82, 250408), (113, 181712), (164, 125204), (226, 90856), (277, 74128), (328, 62602), (452, 45428), (554, 37064), (656, 31301), (904, 22714), (1108, 18532), (1808, 11357), (2216, 9266), (4432, 4633)]