28657928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{14503}}^1$

素因数の和:14541

約数の個数: 32

約数和(自身を含む): 60916800

約数和(自身を除く): 32258872

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 14503, 29006, 58012, 116024, 188539, 275557, 377078, 551114, 754156, 1102228, 1508312, 2204456, 3582241, 7164482, 14328964, 28657928]

約数ペア:

[(1, 28657928), (2, 14328964), (4, 7164482), (8, 3582241), (13, 2204456), (19, 1508312), (26, 1102228), (38, 754156), (52, 551114), (76, 377078), (104, 275557), (152, 188539), (247, 116024), (494, 58012), (988, 29006), (1976, 14503)]