20567428

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 22897532

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 109, 161, 218, 293, 322, 436, 586, 644, 763, 1172, 1526, 2051, 2507, 3052, 4102, 5014, 6739, 8204, 10028, 13478, 17549, 26956, 31937, 35098, 47173, 63874, 70196, 94346, 127748, 188692, 223559, 447118, 734551, 894236, 1469102, 2938204, 5141857, 10283714, 20567428]

約数ペア:

[(1, 20567428), (2, 10283714), (4, 5141857), (7, 2938204), (14, 1469102), (23, 894236), (28, 734551), (46, 447118), (92, 223559), (109, 188692), (161, 127748), (218, 94346), (293, 70196), (322, 63874), (436, 47173), (586, 35098), (644, 31937), (763, 26956), (1172, 17549), (1526, 13478), (2051, 10028), (2507, 8204), (3052, 6739), (4102, 5014)]