1218980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{8707}}^1$

素因数の和:8723

約数の個数: 24

約数和(自身を含む): 2925888

約数和(自身を除く): 1706908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 8707, 17414, 34828, 43535, 60949, 87070, 121898, 174140, 243796, 304745, 609490, 1218980]

約数ペア:

[(1, 1218980), (2, 609490), (4, 304745), (5, 243796), (7, 174140), (10, 121898), (14, 87070), (20, 60949), (28, 43535), (35, 34828), (70, 17414), (140, 8707)]