209593580

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{30553}}^1$

素因数の和:30583

約数の個数: 48

約数和(自身を含む): 513307200

約数和(自身を除く): 303713620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 30553, 61106, 122212, 152765, 213871, 305530, 427742, 611060, 855484, 1069355, 1497097, 2138710, 2994194, 4277420, 5988388, 7485485, 10479679, 14970970, 20959358, 29941940, 41918716, 52398395, 104796790, 209593580]

約数ペア:

[(1, 209593580), (2, 104796790), (4, 52398395), (5, 41918716), (7, 29941940), (10, 20959358), (14, 14970970), (20, 10479679), (28, 7485485), (35, 5988388), (49, 4277420), (70, 2994194), (98, 2138710), (140, 1497097), (196, 1069355), (245, 855484), (343, 611060), (490, 427742), (686, 305530), (980, 213871), (1372, 152765), (1715, 122212), (3430, 61106), (6860, 30553)]