211580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 453600

約数和(自身を除く): 242020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 284, 298, 355, 596, 710, 745, 1420, 1490, 2980, 10579, 21158, 42316, 52895, 105790, 211580]

約数ペア:

[(1, 211580), (2, 105790), (4, 52895), (5, 42316), (10, 21158), (20, 10579), (71, 2980), (142, 1490), (149, 1420), (284, 745), (298, 710), (355, 596)]