20255140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 45198720

約数和(自身を除く): 24943580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 353, 380, 604, 706, 755, 1412, 1510, 1765, 2869, 3020, 3530, 5738, 6707, 7060, 11476, 13414, 14345, 26828, 28690, 33535, 53303, 57380, 67070, 106606, 134140, 213212, 266515, 533030, 1012757, 1066060, 2025514, 4051028, 5063785, 10127570, 20255140]

約数ペア:

[(1, 20255140), (2, 10127570), (4, 5063785), (5, 4051028), (10, 2025514), (19, 1066060), (20, 1012757), (38, 533030), (76, 266515), (95, 213212), (151, 134140), (190, 106606), (302, 67070), (353, 57380), (380, 53303), (604, 33535), (706, 28690), (755, 26828), (1412, 14345), (1510, 13414), (1765, 11476), (2869, 7060), (3020, 6707), (3530, 5738)]