20779052

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 23347156

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 62, 74, 124, 148, 217, 259, 434, 518, 647, 868, 1036, 1147, 1294, 2294, 2588, 4529, 4588, 8029, 9058, 16058, 18116, 20057, 23939, 32116, 40114, 47878, 80228, 95756, 140399, 167573, 280798, 335146, 561596, 670292, 742109, 1484218, 2968436, 5194763, 10389526, 20779052]

約数ペア:

[(1, 20779052), (2, 10389526), (4, 5194763), (7, 2968436), (14, 1484218), (28, 742109), (31, 670292), (37, 561596), (62, 335146), (74, 280798), (124, 167573), (148, 140399), (217, 95756), (259, 80228), (434, 47878), (518, 40114), (647, 32116), (868, 23939), (1036, 20057), (1147, 18116), (1294, 16058), (2294, 9058), (2588, 8029), (4529, 4588)]