156738580

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{4021}}^1$

素因数の和:5979

約数の個数: 24

約数和(自身を含む): 329401800

約数和(自身を除く): 172663220

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 4021, 7796, 8042, 9745, 16084, 19490, 20105, 38980, 40210, 80420, 7836929, 15673858, 31347716, 39184645, 78369290, 156738580]

約数ペア:

[(1, 156738580), (2, 78369290), (4, 39184645), (5, 31347716), (10, 15673858), (20, 7836929), (1949, 80420), (3898, 40210), (4021, 38980), (7796, 20105), (8042, 19490), (9745, 16084)]