15978204

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 44514288

約数和(自身を除く): 28536084

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 157, 198, 257, 314, 396, 471, 514, 628, 771, 942, 1028, 1413, 1542, 1727, 1884, 2313, 2826, 2827, 3084, 3454, 4626, 5181, 5652, 5654, 6908, 8481, 9252, 10362, 11308, 15543, 16962, 20724, 25443, 31086, 33924, 40349, 50886, 62172, 80698, 101772, 121047, 161396, 242094, 363141, 443839, 484188, 726282, 887678, 1331517, 1452564, 1775356, 2663034, 3994551, 5326068, 7989102, 15978204]

約数ペア:

[(1, 15978204), (2, 7989102), (3, 5326068), (4, 3994551), (6, 2663034), (9, 1775356), (11, 1452564), (12, 1331517), (18, 887678), (22, 726282), (33, 484188), (36, 443839), (44, 363141), (66, 242094), (99, 161396), (132, 121047), (157, 101772), (198, 80698), (257, 62172), (314, 50886), (396, 40349), (471, 33924), (514, 31086), (628, 25443), (771, 20724), (942, 16962), (1028, 15543), (1413, 11308), (1542, 10362), (1727, 9252), (1884, 8481), (2313, 6908), (2826, 5654), (2827, 5652), (3084, 5181), (3454, 4626)]