19984369920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{110729}}^1$

素因数の和:110800

約数の個数: 144

約数和(自身を含む): 65183650560

約数和(自身を除く): 45199280640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 128, 141, 160, 188, 192, 235, 240, 256, 282, 320, 376, 384, 470, 480, 564, 640, 705, 752, 768, 940, 960, 1128, 1280, 1410, 1504, 1880, 1920, 2256, 2820, 3008, 3760, 3840, 4512, 5640, 6016, 7520, 9024, 11280, 12032, 15040, 18048, 22560, 30080, 36096, 45120, 60160, 90240, 110729, 180480, 221458, 332187, 442916, 553645, 664374, 885832, 1107290, 1328748, 1660935, 1771664, 2214580, 2657496, 3321870, 3543328, 4429160, 5204263, 5314992, 6643740, 7086656, 8858320, 10408526, 10629984, 13287480, 14173312, 15612789, 17716640, 20817052, 21259968, 26021315, 26574960, 28346624, 31225578, 35433280, 41634104, 42519936, 52042630, 53149920, 62451156, 70866560, 78063945, 83268208, 85039872, 104085260, 106299840, 124902312, 141733120, 156127890, 166536416, 208170520, 212599680, 249804624, 312255780, 333072832, 416341040, 425199360, 499609248, 624511560, 666145664, 832682080, 999218496, 1249023120, 1332291328, 1665364160, 1998436992, 2498046240, 3330728320, 3996873984, 4996092480, 6661456640, 9992184960, 19984369920]

約数ペア:

[(1, 19984369920), (2, 9992184960), (3, 6661456640), (4, 4996092480), (5, 3996873984), (6, 3330728320), (8, 2498046240), (10, 1998436992), (12, 1665364160), (15, 1332291328), (16, 1249023120), (20, 999218496), (24, 832682080), (30, 666145664), (32, 624511560), (40, 499609248), (47, 425199360), (48, 416341040), (60, 333072832), (64, 312255780), (80, 249804624), (94, 212599680), (96, 208170520), (120, 166536416), (128, 156127890), (141, 141733120), (160, 124902312), (188, 106299840), (192, 104085260), (235, 85039872), (240, 83268208), (256, 78063945), (282, 70866560), (320, 62451156), (376, 53149920), (384, 52042630), (470, 42519936), (480, 41634104), (564, 35433280), (640, 31225578), (705, 28346624), (752, 26574960), (768, 26021315), (940, 21259968), (960, 20817052), (1128, 17716640), (1280, 15612789), (1410, 14173312), (1504, 13287480), (1880, 10629984), (1920, 10408526), (2256, 8858320), (2820, 7086656), (3008, 6643740), (3760, 5314992), (3840, 5204263), (4512, 4429160), (5640, 3543328), (6016, 3321870), (7520, 2657496), (9024, 2214580), (11280, 1771664), (12032, 1660935), (15040, 1328748), (18048, 1107290), (22560, 885832), (30080, 664374), (36096, 553645), (45120, 442916), (60160, 332187), (90240, 221458), (110729, 180480)]