20847172920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{128591}}^1$

素因数の和:128805

約数の個数: 128

約数和(自身を含む): 71846922240

約数和(自身を除く): 50999749320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 193, 210, 280, 386, 420, 579, 772, 840, 965, 1158, 1351, 1544, 1930, 2316, 2702, 2895, 3860, 4053, 4632, 5404, 5790, 6755, 7720, 8106, 10808, 11580, 13510, 16212, 20265, 23160, 27020, 32424, 40530, 54040, 81060, 128591, 162120, 257182, 385773, 514364, 642955, 771546, 900137, 1028728, 1285910, 1543092, 1800274, 1928865, 2571820, 2700411, 3086184, 3600548, 3857730, 4500685, 5143640, 5400822, 7201096, 7715460, 9001370, 10801644, 13502055, 15430920, 18002740, 21603288, 24818063, 27004110, 36005480, 49636126, 54008220, 74454189, 99272252, 108016440, 124090315, 148908378, 173726441, 198544504, 248180630, 297816756, 347452882, 372270945, 496361260, 521179323, 595633512, 694905764, 744541890, 868632205, 992722520, 1042358646, 1389811528, 1489083780, 1737264410, 2084717292, 2605896615, 2978167560, 3474528820, 4169434584, 5211793230, 6949057640, 10423586460, 20847172920]

約数ペア:

[(1, 20847172920), (2, 10423586460), (3, 6949057640), (4, 5211793230), (5, 4169434584), (6, 3474528820), (7, 2978167560), (8, 2605896615), (10, 2084717292), (12, 1737264410), (14, 1489083780), (15, 1389811528), (20, 1042358646), (21, 992722520), (24, 868632205), (28, 744541890), (30, 694905764), (35, 595633512), (40, 521179323), (42, 496361260), (56, 372270945), (60, 347452882), (70, 297816756), (84, 248180630), (105, 198544504), (120, 173726441), (140, 148908378), (168, 124090315), (193, 108016440), (210, 99272252), (280, 74454189), (386, 54008220), (420, 49636126), (579, 36005480), (772, 27004110), (840, 24818063), (965, 21603288), (1158, 18002740), (1351, 15430920), (1544, 13502055), (1930, 10801644), (2316, 9001370), (2702, 7715460), (2895, 7201096), (3860, 5400822), (4053, 5143640), (4632, 4500685), (5404, 3857730), (5790, 3600548), (6755, 3086184), (7720, 2700411), (8106, 2571820), (10808, 1928865), (11580, 1800274), (13510, 1543092), (16212, 1285910), (20265, 1028728), (23160, 900137), (27020, 771546), (32424, 642955), (40530, 514364), (54040, 385773), (81060, 257182), (128591, 162120)]