22221520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3121}}^1$

素因数の和:3223

約数の個数: 40

約数和(自身を含む): 52262280

約数和(自身を除く): 30040760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3121, 3560, 6242, 7120, 12484, 15605, 24968, 31210, 49936, 62420, 124840, 249680, 277769, 555538, 1111076, 1388845, 2222152, 2777690, 4444304, 5555380, 11110760, 22221520]

約数ペア:

[(1, 22221520), (2, 11110760), (4, 5555380), (5, 4444304), (8, 2777690), (10, 2222152), (16, 1388845), (20, 1111076), (40, 555538), (80, 277769), (89, 249680), (178, 124840), (356, 62420), (445, 49936), (712, 31210), (890, 24968), (1424, 15605), (1780, 12484), (3121, 7120), (3560, 6242)]