7721420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{7879}}^1$

素因数の和:7902

約数の個数: 36

約数和(自身を含む): 18864720

約数和(自身を除く): 11143300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 7879, 15758, 31516, 39395, 55153, 78790, 110306, 157580, 220612, 275765, 386071, 551530, 772142, 1103060, 1544284, 1930355, 3860710, 7721420]

約数ペア:

[(1, 7721420), (2, 3860710), (4, 1930355), (5, 1544284), (7, 1103060), (10, 772142), (14, 551530), (20, 386071), (28, 275765), (35, 220612), (49, 157580), (70, 110306), (98, 78790), (140, 55153), (196, 39395), (245, 31516), (490, 15758), (980, 7879)]