28155790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2116

約数の個数: 32

約数和(自身を含む): 55107360

約数和(自身を除く): 26951570

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1987, 2834, 3974, 7085, 9935, 14170, 19870, 25831, 51662, 129155, 216583, 258310, 433166, 1082915, 2165830, 2815579, 5631158, 14077895, 28155790]

約数ペア:

[(1, 28155790), (2, 14077895), (5, 5631158), (10, 2815579), (13, 2165830), (26, 1082915), (65, 433166), (109, 258310), (130, 216583), (218, 129155), (545, 51662), (1090, 25831), (1417, 19870), (1987, 14170), (2834, 9935), (3974, 7085)]