20120778519

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{257}}^1\times {\mathrm{1237}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 29024880288

約数和(自身を除く): 8904101769

約数列:

[1, 3, 17, 51, 73, 219, 257, 289, 771, 867, 1237, 1241, 3711, 3723, 4369, 13107, 18761, 21029, 21097, 56283, 63087, 63291, 74273, 90301, 222819, 270903, 317909, 318937, 357493, 953727, 956811, 1072479, 1535117, 4605351, 5404453, 5421929, 16213359, 16265787, 23207357, 26096989, 69622071, 78290967, 91875701, 275627103, 394525069, 1183575207, 6706926173, 20120778519]

約数ペア:

[(1, 20120778519), (3, 6706926173), (17, 1183575207), (51, 394525069), (73, 275627103), (219, 91875701), (257, 78290967), (289, 69622071), (771, 26096989), (867, 23207357), (1237, 16265787), (1241, 16213359), (3711, 5421929), (3723, 5404453), (4369, 4605351), (13107, 1535117), (18761, 1072479), (21029, 956811), (21097, 953727), (56283, 357493), (63087, 318937), (63291, 317909), (74273, 270903), (90301, 222819)]