20727370

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 39201408

約数和(自身を除く): 18474038

約数列:

[1, 2, 5, 10, 23, 46, 115, 227, 230, 397, 454, 794, 1135, 1985, 2270, 3970, 5221, 9131, 10442, 18262, 26105, 45655, 52210, 90119, 91310, 180238, 450595, 901190, 2072737, 4145474, 10363685, 20727370]

約数ペア:

[(1, 20727370), (2, 10363685), (5, 4145474), (10, 2072737), (23, 901190), (46, 450595), (115, 180238), (227, 91310), (230, 90119), (397, 52210), (454, 45655), (794, 26105), (1135, 18262), (1985, 10442), (2270, 9131), (3970, 5221)]