19972800

素因数分解:

$2^6\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:120

約数の個数: 252

約数和(自身を含む): 75747880

約数和(自身を除く): 55775080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 32, 36, 38, 40, 45, 48, 50, 57, 60, 64, 72, 73, 75, 76, 80, 90, 95, 96, 100, 114, 120, 144, 146, 150, 152, 160, 171, 180, 190, 192, 200, 219, 225, 228, 240, 285, 288, 292, 300, 304, 320, 342, 360, 365, 380, 400, 438, 450, 456, 475, 480, 570, 576, 584, 600, 608, 657, 684, 720, 730, 760, 800, 855, 876, 900, 912, 950, 960, 1095, 1140, 1168, 1200, 1216, 1314, 1368, 1387, 1425, 1440, 1460, 1520, 1600, 1710, 1752, 1800, 1824, 1825, 1900, 2190, 2280, 2336, 2400, 2628, 2736, 2774, 2850, 2880, 2920, 3040, 3285, 3420, 3504, 3600, 3648, 3650, 3800, 4161, 4275, 4380, 4560, 4672, 4800, 5256, 5472, 5475, 5548, 5700, 5840, 6080, 6570, 6840, 6935, 7008, 7200, 7300, 7600, 8322, 8550, 8760, 9120, 10512, 10944, 10950, 11096, 11400, 11680, 12483, 13140, 13680, 13870, 14016, 14400, 14600, 15200, 16425, 16644, 17100, 17520, 18240, 20805, 21024, 21900, 22192, 22800, 23360, 24966, 26280, 27360, 27740, 29200, 30400, 32850, 33288, 34200, 34675, 35040, 41610, 42048, 43800, 44384, 45600, 49932, 52560, 54720, 55480, 58400, 62415, 65700, 66576, 68400, 69350, 70080, 83220, 87600, 88768, 91200, 99864, 104025, 105120, 110960, 116800, 124830, 131400, 133152, 136800, 138700, 166440, 175200, 199728, 208050, 210240, 221920, 249660, 262800, 266304, 273600, 277400, 312075, 332880, 350400, 399456, 416100, 443840, 499320, 525600, 554800, 624150, 665760, 798912, 832200, 998640, 1051200, 1109600, 1248300, 1331520, 1664400, 1997280, 2219200, 2496600, 3328800, 3994560, 4993200, 6657600, 9986400, 19972800]

約数ペア:

[(1, 19972800), (2, 9986400), (3, 6657600), (4, 4993200), (5, 3994560), (6, 3328800), (8, 2496600), (9, 2219200), (10, 1997280), (12, 1664400), (15, 1331520), (16, 1248300), (18, 1109600), (19, 1051200), (20, 998640), (24, 832200), (25, 798912), (30, 665760), (32, 624150), (36, 554800), (38, 525600), (40, 499320), (45, 443840), (48, 416100), (50, 399456), (57, 350400), (60, 332880), (64, 312075), (72, 277400), (73, 273600), (75, 266304), (76, 262800), (80, 249660), (90, 221920), (95, 210240), (96, 208050), (100, 199728), (114, 175200), (120, 166440), (144, 138700), (146, 136800), (150, 133152), (152, 131400), (160, 124830), (171, 116800), (180, 110960), (190, 105120), (192, 104025), (200, 99864), (219, 91200), (225, 88768), (228, 87600), (240, 83220), (285, 70080), (288, 69350), (292, 68400), (300, 66576), (304, 65700), (320, 62415), (342, 58400), (360, 55480), (365, 54720), (380, 52560), (400, 49932), (438, 45600), (450, 44384), (456, 43800), (475, 42048), (480, 41610), (570, 35040), (576, 34675), (584, 34200), (600, 33288), (608, 32850), (657, 30400), (684, 29200), (720, 27740), (730, 27360), (760, 26280), (800, 24966), (855, 23360), (876, 22800), (900, 22192), (912, 21900), (950, 21024), (960, 20805), (1095, 18240), (1140, 17520), (1168, 17100), (1200, 16644), (1216, 16425), (1314, 15200), (1368, 14600), (1387, 14400), (1425, 14016), (1440, 13870), (1460, 13680), (1520, 13140), (1600, 12483), (1710, 11680), (1752, 11400), (1800, 11096), (1824, 10950), (1825, 10944), (1900, 10512), (2190, 9120), (2280, 8760), (2336, 8550), (2400, 8322), (2628, 7600), (2736, 7300), (2774, 7200), (2850, 7008), (2880, 6935), (2920, 6840), (3040, 6570), (3285, 6080), (3420, 5840), (3504, 5700), (3600, 5548), (3648, 5475), (3650, 5472), (3800, 5256), (4161, 4800), (4275, 4672), (4380, 4560)]