20378046

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 47190528

約数和(自身を除く): 26812482

約数列:

[1, 2, 3, 6, 13, 23, 26, 37, 39, 46, 69, 74, 78, 111, 138, 222, 299, 307, 481, 598, 614, 851, 897, 921, 962, 1443, 1702, 1794, 1842, 2553, 2886, 3991, 5106, 7061, 7982, 11063, 11359, 11973, 14122, 21183, 22126, 22718, 23946, 33189, 34077, 42366, 66378, 68154, 91793, 147667, 183586, 261257, 275379, 295334, 443001, 522514, 550758, 783771, 886002, 1567542, 3396341, 6792682, 10189023, 20378046]

約数ペア:

[(1, 20378046), (2, 10189023), (3, 6792682), (6, 3396341), (13, 1567542), (23, 886002), (26, 783771), (37, 550758), (39, 522514), (46, 443001), (69, 295334), (74, 275379), (78, 261257), (111, 183586), (138, 147667), (222, 91793), (299, 68154), (307, 66378), (481, 42366), (598, 34077), (614, 33189), (851, 23946), (897, 22718), (921, 22126), (962, 21183), (1443, 14122), (1702, 11973), (1794, 11359), (1842, 11063), (2553, 7982), (2886, 7061), (3991, 5106)]