19457240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44221}}^1$

素因数の和:44243

約数の個数: 32

約数和(自身を含む): 47759760

約数和(自身を除く): 28302520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44221, 88442, 176884, 221105, 353768, 442210, 486431, 884420, 972862, 1768840, 1945724, 2432155, 3891448, 4864310, 9728620, 19457240]

約数ペア:

[(1, 19457240), (2, 9728620), (4, 4864310), (5, 3891448), (8, 2432155), (10, 1945724), (11, 1768840), (20, 972862), (22, 884420), (40, 486431), (44, 442210), (55, 353768), (88, 221105), (110, 176884), (220, 88442), (440, 44221)]