20315428

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22262492

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 127, 197, 203, 254, 394, 406, 508, 788, 812, 889, 1379, 1778, 2758, 3556, 3683, 5516, 5713, 7366, 11426, 14732, 22852, 25019, 25781, 39991, 50038, 51562, 79982, 100076, 103124, 159964, 175133, 350266, 700532, 725551, 1451102, 2902204, 5078857, 10157714, 20315428]

約数ペア:

[(1, 20315428), (2, 10157714), (4, 5078857), (7, 2902204), (14, 1451102), (28, 725551), (29, 700532), (58, 350266), (116, 175133), (127, 159964), (197, 103124), (203, 100076), (254, 79982), (394, 51562), (406, 50038), (508, 39991), (788, 25781), (812, 25019), (889, 22852), (1379, 14732), (1778, 11426), (2758, 7366), (3556, 5713), (3683, 5516)]