19005483490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{3923}}^1\times {\mathrm{9887}}^1$

素因数の和:13831

約数の個数: 48

約数和(自身を含む): 39809325312

約数和(自身を除く): 20803841822

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 3923, 7846, 9887, 19615, 19774, 27461, 39230, 49435, 54922, 69209, 98870, 137305, 138418, 192227, 274610, 346045, 384454, 484463, 692090, 961135, 968926, 1922270, 2422315, 4844630, 38786701, 77573402, 193933505, 271506907, 387867010, 543013814, 1357534535, 1900548349, 2715069070, 3801096698, 9502741745, 19005483490]

約数ペア:

[(1, 19005483490), (2, 9502741745), (5, 3801096698), (7, 2715069070), (10, 1900548349), (14, 1357534535), (35, 543013814), (49, 387867010), (70, 271506907), (98, 193933505), (245, 77573402), (490, 38786701), (3923, 4844630), (7846, 2422315), (9887, 1922270), (19615, 968926), (19774, 961135), (27461, 692090), (39230, 484463), (49435, 384454), (54922, 346045), (69209, 274610), (98870, 192227), (137305, 138418)]