20856721920

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{10567}}^1$

素因数の和:10850

約数の個数: 160

約数和(自身を含む): 66942108288

約数和(自身を除く): 46085386368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 257, 320, 384, 480, 512, 514, 640, 768, 771, 960, 1028, 1280, 1285, 1536, 1542, 1920, 2056, 2560, 2570, 3084, 3840, 3855, 4112, 5140, 6168, 7680, 7710, 8224, 10280, 10567, 12336, 15420, 16448, 20560, 21134, 24672, 30840, 31701, 32896, 41120, 42268, 49344, 52835, 61680, 63402, 65792, 82240, 84536, 98688, 105670, 123360, 126804, 131584, 158505, 164480, 169072, 197376, 211340, 246720, 253608, 317010, 328960, 338144, 394752, 422680, 493440, 507216, 634020, 657920, 676288, 845360, 986880, 1014432, 1268040, 1352576, 1690720, 1973760, 2028864, 2536080, 2705152, 2715719, 3381440, 4057728, 5072160, 5410304, 5431438, 6762880, 8115456, 8147157, 10144320, 10862876, 13525760, 13578595, 16230912, 16294314, 20288640, 21725752, 27051520, 27157190, 32588628, 40577280, 40735785, 43451504, 54314380, 65177256, 81154560, 81471570, 86903008, 108628760, 130354512, 162943140, 173806016, 217257520, 260709024, 325886280, 347612032, 434515040, 521418048, 651772560, 695224064, 869030080, 1042836096, 1303545120, 1390448128, 1738060160, 2085672192, 2607090240, 3476120320, 4171344384, 5214180480, 6952240640, 10428360960, 20856721920]

約数ペア:

[(1, 20856721920), (2, 10428360960), (3, 6952240640), (4, 5214180480), (5, 4171344384), (6, 3476120320), (8, 2607090240), (10, 2085672192), (12, 1738060160), (15, 1390448128), (16, 1303545120), (20, 1042836096), (24, 869030080), (30, 695224064), (32, 651772560), (40, 521418048), (48, 434515040), (60, 347612032), (64, 325886280), (80, 260709024), (96, 217257520), (120, 173806016), (128, 162943140), (160, 130354512), (192, 108628760), (240, 86903008), (256, 81471570), (257, 81154560), (320, 65177256), (384, 54314380), (480, 43451504), (512, 40735785), (514, 40577280), (640, 32588628), (768, 27157190), (771, 27051520), (960, 21725752), (1028, 20288640), (1280, 16294314), (1285, 16230912), (1536, 13578595), (1542, 13525760), (1920, 10862876), (2056, 10144320), (2560, 8147157), (2570, 8115456), (3084, 6762880), (3840, 5431438), (3855, 5410304), (4112, 5072160), (5140, 4057728), (6168, 3381440), (7680, 2715719), (7710, 2705152), (8224, 2536080), (10280, 2028864), (10567, 1973760), (12336, 1690720), (15420, 1352576), (16448, 1268040), (20560, 1014432), (21134, 986880), (24672, 845360), (30840, 676288), (31701, 657920), (32896, 634020), (41120, 507216), (42268, 493440), (49344, 422680), (52835, 394752), (61680, 338144), (63402, 328960), (65792, 317010), (82240, 253608), (84536, 246720), (98688, 211340), (105670, 197376), (123360, 169072), (126804, 164480), (131584, 158505)]