20728584

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 59754240

約数和(自身を除く): 39025656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 37, 62, 72, 74, 93, 111, 124, 148, 186, 222, 248, 251, 279, 296, 333, 372, 444, 502, 558, 666, 744, 753, 888, 1004, 1116, 1147, 1332, 1506, 2008, 2232, 2259, 2294, 2664, 3012, 3441, 4518, 4588, 6024, 6882, 7781, 9036, 9176, 9287, 10323, 13764, 15562, 18072, 18574, 20646, 23343, 27528, 27861, 31124, 37148, 41292, 46686, 55722, 62248, 70029, 74296, 82584, 83583, 93372, 111444, 140058, 167166, 186744, 222888, 280116, 287897, 334332, 560232, 575794, 668664, 863691, 1151588, 1727382, 2303176, 2591073, 3454764, 5182146, 6909528, 10364292, 20728584]

約数ペア:

[(1, 20728584), (2, 10364292), (3, 6909528), (4, 5182146), (6, 3454764), (8, 2591073), (9, 2303176), (12, 1727382), (18, 1151588), (24, 863691), (31, 668664), (36, 575794), (37, 560232), (62, 334332), (72, 287897), (74, 280116), (93, 222888), (111, 186744), (124, 167166), (148, 140058), (186, 111444), (222, 93372), (248, 83583), (251, 82584), (279, 74296), (296, 70029), (333, 62248), (372, 55722), (444, 46686), (502, 41292), (558, 37148), (666, 31124), (744, 27861), (753, 27528), (888, 23343), (1004, 20646), (1116, 18574), (1147, 18072), (1332, 15562), (1506, 13764), (2008, 10323), (2232, 9287), (2259, 9176), (2294, 9036), (2664, 7781), (3012, 6882), (3441, 6024), (4518, 4588)]