145580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 317520

約数和(自身を除く): 171940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 251, 290, 502, 580, 1004, 1255, 2510, 5020, 7279, 14558, 29116, 36395, 72790, 145580]

約数ペア:

[(1, 145580), (2, 72790), (4, 36395), (5, 29116), (10, 14558), (20, 7279), (29, 5020), (58, 2510), (116, 1255), (145, 1004), (251, 580), (290, 502)]