20178612

素因数分解:

$2^2\times 3^3\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 52590720

約数和(自身を除く): 32412108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 257, 514, 727, 771, 1028, 1454, 1542, 2181, 2313, 2908, 3084, 4362, 4626, 6543, 6939, 8724, 9252, 13086, 13878, 19629, 26172, 27756, 39258, 78516, 186839, 373678, 560517, 747356, 1121034, 1681551, 2242068, 3363102, 5044653, 6726204, 10089306, 20178612]

約数ペア:

[(1, 20178612), (2, 10089306), (3, 6726204), (4, 5044653), (6, 3363102), (9, 2242068), (12, 1681551), (18, 1121034), (27, 747356), (36, 560517), (54, 373678), (108, 186839), (257, 78516), (514, 39258), (727, 27756), (771, 26172), (1028, 19629), (1454, 13878), (1542, 13086), (2181, 9252), (2313, 8724), (2908, 6939), (3084, 6543), (4362, 4626)]