12796840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6529}}^1$

素因数の和:6554

約数の個数: 48

約数和(自身を含む): 33498900

約数和(自身を除く): 20702060

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, 6529, 13058, 26116, 32645, 45703, 52232, 65290, 91406, 130580, 182812, 228515, 261160, 319921, 365624, 457030, 639842, 914060, 1279684, 1599605, 1828120, 2559368, 3199210, 6398420, 12796840]

約数ペア:

[(1, 12796840), (2, 6398420), (4, 3199210), (5, 2559368), (7, 1828120), (8, 1599605), (10, 1279684), (14, 914060), (20, 639842), (28, 457030), (35, 365624), (40, 319921), (49, 261160), (56, 228515), (70, 182812), (98, 130580), (140, 91406), (196, 65290), (245, 52232), (280, 45703), (392, 32645), (490, 26116), (980, 13058), (1960, 6529)]