222400

素因数分解:

$2^6\times 5^2\times {\mathrm{139}}^1$

素因数の和:161

約数の個数: 42

約数和(自身を含む): 551180

約数和(自身を除く): 328780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 139, 160, 200, 278, 320, 400, 556, 695, 800, 1112, 1390, 1600, 2224, 2780, 3475, 4448, 5560, 6950, 8896, 11120, 13900, 22240, 27800, 44480, 55600, 111200, 222400]

約数ペア:

[(1, 222400), (2, 111200), (4, 55600), (5, 44480), (8, 27800), (10, 22240), (16, 13900), (20, 11120), (25, 8896), (32, 6950), (40, 5560), (50, 4448), (64, 3475), (80, 2780), (100, 2224), (139, 1600), (160, 1390), (200, 1112), (278, 800), (320, 695), (400, 556)]