28481684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 67952640

約数和(自身を除く): 39470956

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 31, 38, 44, 62, 76, 77, 124, 133, 154, 157, 209, 217, 266, 308, 314, 341, 418, 434, 532, 589, 628, 682, 836, 868, 1099, 1178, 1364, 1463, 1727, 2198, 2356, 2387, 2926, 2983, 3454, 4123, 4396, 4774, 4867, 5852, 5966, 6479, 6908, 8246, 9548, 9734, 11932, 12089, 12958, 16492, 19468, 20881, 24178, 25916, 32813, 34069, 41762, 45353, 48356, 53537, 65626, 68138, 83524, 90706, 92473, 107074, 131252, 136276, 181412, 184946, 214148, 229691, 369892, 374759, 459382, 647311, 749518, 918764, 1017203, 1294622, 1499036, 2034406, 2589244, 4068812, 7120421, 14240842, 28481684]

約数ペア:

[(1, 28481684), (2, 14240842), (4, 7120421), (7, 4068812), (11, 2589244), (14, 2034406), (19, 1499036), (22, 1294622), (28, 1017203), (31, 918764), (38, 749518), (44, 647311), (62, 459382), (76, 374759), (77, 369892), (124, 229691), (133, 214148), (154, 184946), (157, 181412), (209, 136276), (217, 131252), (266, 107074), (308, 92473), (314, 90706), (341, 83524), (418, 68138), (434, 65626), (532, 53537), (589, 48356), (628, 45353), (682, 41762), (836, 34069), (868, 32813), (1099, 25916), (1178, 24178), (1364, 20881), (1463, 19468), (1727, 16492), (2198, 12958), (2356, 12089), (2387, 11932), (2926, 9734), (2983, 9548), (3454, 8246), (4123, 6908), (4396, 6479), (4774, 5966), (4867, 5852)]