20388004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 44531200

約数和(自身を除く): 24143196

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 79, 91, 158, 182, 316, 364, 553, 709, 1027, 1106, 1418, 2054, 2212, 2836, 4108, 4963, 7189, 9217, 9926, 14378, 18434, 19852, 28756, 36868, 56011, 64519, 112022, 129038, 224044, 258076, 392077, 728143, 784154, 1456286, 1568308, 2912572, 5097001, 10194002, 20388004]

約数ペア:

[(1, 20388004), (2, 10194002), (4, 5097001), (7, 2912572), (13, 1568308), (14, 1456286), (26, 784154), (28, 728143), (52, 392077), (79, 258076), (91, 224044), (158, 129038), (182, 112022), (316, 64519), (364, 56011), (553, 36868), (709, 28756), (1027, 19852), (1106, 18434), (1418, 14378), (2054, 9926), (2212, 9217), (2836, 7189), (4108, 4963)]