217626880

素因数分解:

$2^8\times 5^1\times {\mathrm{170021}}^1$

素因数の和:170042

約数の個数: 36

約数和(自身を含む): 521287452

約数和(自身を除く): 303660572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 170021, 340042, 680084, 850105, 1360168, 1700210, 2720336, 3400420, 5440672, 6800840, 10881344, 13601680, 21762688, 27203360, 43525376, 54406720, 108813440, 217626880]

約数ペア:

[(1, 217626880), (2, 108813440), (4, 54406720), (5, 43525376), (8, 27203360), (10, 21762688), (16, 13601680), (20, 10881344), (32, 6800840), (40, 5440672), (64, 3400420), (80, 2720336), (128, 1700210), (160, 1360168), (256, 850105), (320, 680084), (640, 340042), (1280, 170021)]