20274436

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 45470040

約数和(自身を除く): 25195604

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 73, 91, 98, 109, 146, 182, 196, 218, 292, 364, 436, 511, 637, 763, 949, 1022, 1274, 1417, 1526, 1898, 2044, 2548, 2834, 3052, 3577, 3796, 5341, 5668, 6643, 7154, 7957, 9919, 10682, 13286, 14308, 15914, 19838, 21364, 26572, 31828, 39676, 46501, 55699, 69433, 93002, 103441, 111398, 138866, 186004, 206882, 222796, 277732, 389893, 413764, 724087, 779786, 1448174, 1559572, 2896348, 5068609, 10137218, 20274436]

約数ペア:

[(1, 20274436), (2, 10137218), (4, 5068609), (7, 2896348), (13, 1559572), (14, 1448174), (26, 779786), (28, 724087), (49, 413764), (52, 389893), (73, 277732), (91, 222796), (98, 206882), (109, 186004), (146, 138866), (182, 111398), (196, 103441), (218, 93002), (292, 69433), (364, 55699), (436, 46501), (511, 39676), (637, 31828), (763, 26572), (949, 21364), (1022, 19838), (1274, 15914), (1417, 14308), (1526, 13286), (1898, 10682), (2044, 9919), (2548, 7957), (2834, 7154), (3052, 6643), (3577, 5668), (3796, 5341)]