220176680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{77527}}^1$

素因数の和:77609

約数の個数: 32

約数和(自身を含む): 502381440

約数和(自身を除く): 282204760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 77527, 155054, 310108, 387635, 620216, 775270, 1550540, 3101080, 5504417, 11008834, 22017668, 27522085, 44035336, 55044170, 110088340, 220176680]

約数ペア:

[(1, 220176680), (2, 110088340), (4, 55044170), (5, 44035336), (8, 27522085), (10, 22017668), (20, 11008834), (40, 5504417), (71, 3101080), (142, 1550540), (284, 775270), (355, 620216), (568, 387635), (710, 310108), (1420, 155054), (2840, 77527)]