28106805

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 47257344

約数和(自身を除く): 19150539

約数列:

[1, 3, 5, 15, 23, 69, 115, 257, 317, 345, 771, 951, 1285, 1585, 3855, 4755, 5911, 7291, 17733, 21873, 29555, 36455, 81469, 88665, 109365, 244407, 407345, 1222035, 1873787, 5621361, 9368935, 28106805]

約数ペア:

[(1, 28106805), (3, 9368935), (5, 5621361), (15, 1873787), (23, 1222035), (69, 407345), (115, 244407), (257, 109365), (317, 88665), (345, 81469), (771, 36455), (951, 29555), (1285, 21873), (1585, 17733), (3855, 7291), (4755, 5911)]