28104895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3295

約数の個数: 32

約数和(自身を含む): 43706880

約数和(自身を除く): 15601985

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 3251, 8645, 16255, 22757, 42263, 61769, 113785, 211315, 295841, 308845, 432383, 802997, 1479205, 2161915, 4014985, 5620979, 28104895]

約数ペア:

[(1, 28104895), (5, 5620979), (7, 4014985), (13, 2161915), (19, 1479205), (35, 802997), (65, 432383), (91, 308845), (95, 295841), (133, 211315), (247, 113785), (455, 61769), (665, 42263), (1235, 22757), (1729, 16255), (3251, 8645)]