15442840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{7879}}^1$

素因数の和:7904

約数の個数: 48

約数和(自身を含む): 40424400

約数和(自身を除く): 24981560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 7879, 15758, 31516, 39395, 55153, 63032, 78790, 110306, 157580, 220612, 275765, 315160, 386071, 441224, 551530, 772142, 1103060, 1544284, 1930355, 2206120, 3088568, 3860710, 7721420, 15442840]

約数ペア:

[(1, 15442840), (2, 7721420), (4, 3860710), (5, 3088568), (7, 2206120), (8, 1930355), (10, 1544284), (14, 1103060), (20, 772142), (28, 551530), (35, 441224), (40, 386071), (49, 315160), (56, 275765), (70, 220612), (98, 157580), (140, 110306), (196, 78790), (245, 63032), (280, 55153), (392, 39395), (490, 31516), (980, 15758), (1960, 7879)]