678565720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{346207}}^1$

素因数の和:346232

約数の個数: 48

約数和(自身を含む): 1776047040

約数和(自身を除く): 1097481320

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, 346207, 692414, 1384828, 1731035, 2423449, 2769656, 3462070, 4846898, 6924140, 9693796, 12117245, 13848280, 16964143, 19387592, 24234490, 33928286, 48468980, 67856572, 84820715, 96937960, 135713144, 169641430, 339282860, 678565720]

約数ペア:

[(1, 678565720), (2, 339282860), (4, 169641430), (5, 135713144), (7, 96937960), (8, 84820715), (10, 67856572), (14, 48468980), (20, 33928286), (28, 24234490), (35, 19387592), (40, 16964143), (49, 13848280), (56, 12117245), (70, 9693796), (98, 6924140), (140, 4846898), (196, 3462070), (245, 2769656), (280, 2423449), (392, 1731035), (490, 1384828), (980, 692414), (1960, 346207)]