155419580

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{19379}}^1$

素因数の和:19789

約数の個数: 24

約数和(自身を含む): 327211920

約数和(自身を除く): 171792340

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 19379, 38758, 77516, 96895, 193790, 387580, 7770979, 15541958, 31083916, 38854895, 77709790, 155419580]

約数ペア:

[(1, 155419580), (2, 77709790), (4, 38854895), (5, 31083916), (10, 15541958), (20, 7770979), (401, 387580), (802, 193790), (1604, 96895), (2005, 77516), (4010, 38758), (8020, 19379)]