20728812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1493}}^1$

素因数の和:1602

約数の個数: 48

約数和(自身を含む): 52708320

約数和(自身を除く): 31979508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 89, 156, 178, 267, 356, 534, 1068, 1157, 1493, 2314, 2986, 3471, 4479, 4628, 5972, 6942, 8958, 13884, 17916, 19409, 38818, 58227, 77636, 116454, 132877, 232908, 265754, 398631, 531508, 797262, 1594524, 1727401, 3454802, 5182203, 6909604, 10364406, 20728812]

約数ペア:

[(1, 20728812), (2, 10364406), (3, 6909604), (4, 5182203), (6, 3454802), (12, 1727401), (13, 1594524), (26, 797262), (39, 531508), (52, 398631), (78, 265754), (89, 232908), (156, 132877), (178, 116454), (267, 77636), (356, 58227), (534, 38818), (1068, 19409), (1157, 17916), (1493, 13884), (2314, 8958), (2986, 6942), (3471, 5972), (4479, 4628)]