13040860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1901}}^1$

素因数の和:1931

約数の個数: 48

約数和(自身を含む): 31953600

約数和(自身を除く): 18912740

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, 1901, 3430, 3802, 6860, 7604, 9505, 13307, 19010, 26614, 38020, 53228, 66535, 93149, 133070, 186298, 266140, 372596, 465745, 652043, 931490, 1304086, 1862980, 2608172, 3260215, 6520430, 13040860]

約数ペア:

[(1, 13040860), (2, 6520430), (4, 3260215), (5, 2608172), (7, 1862980), (10, 1304086), (14, 931490), (20, 652043), (28, 465745), (35, 372596), (49, 266140), (70, 186298), (98, 133070), (140, 93149), (196, 66535), (245, 53228), (343, 38020), (490, 26614), (686, 19010), (980, 13307), (1372, 9505), (1715, 7604), (1901, 6860), (3430, 3802)]