198896

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:440

約数の個数: 20

約数和(自身を含む): 398784

約数和(自身を除く): 199888

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 401, 496, 802, 1604, 3208, 6416, 12431, 24862, 49724, 99448, 198896]

約数ペア:

[(1, 198896), (2, 99448), (4, 49724), (8, 24862), (16, 12431), (31, 6416), (62, 3208), (124, 1604), (248, 802), (401, 496)]