399989520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4177}}^1$

素因数の和:4222

約数の個数: 240

約数和(自身を含む): 1616384640

約数和(自身を除く): 1216395120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1680, 1710, 1995, 2128, 2280, 2394, 2520, 2660, 2736, 3192, 3420, 3990, 4177, 4560, 4788, 5040, 5320, 5985, 6384, 6840, 7980, 8354, 9576, 10640, 11970, 12531, 13680, 15960, 16708, 19152, 20885, 23940, 25062, 29239, 31920, 33416, 37593, 41770, 47880, 50124, 58478, 62655, 66832, 75186, 79363, 83540, 87717, 95760, 100248, 116956, 125310, 146195, 150372, 158726, 167080, 175434, 187965, 200496, 233912, 238089, 250620, 263151, 292390, 300744, 317452, 334160, 350868, 375930, 396815, 438585, 467824, 476178, 501240, 526302, 555541, 584780, 601488, 634904, 701736, 714267, 751860, 793630, 877170, 952356, 1002480, 1052604, 1111082, 1169560, 1190445, 1269808, 1315755, 1403472, 1428534, 1503720, 1587260, 1666623, 1754340, 1904712, 2105208, 2222164, 2339120, 2380890, 2631510, 2777705, 2857068, 3007440, 3174520, 3333246, 3508680, 3571335, 3809424, 4210416, 4444328, 4761780, 4999869, 5263020, 5555410, 5714136, 6349040, 6666492, 7017360, 7142670, 8333115, 8888656, 9523560, 9999738, 10526040, 11110820, 11428272, 13332984, 14285340, 16666230, 19047120, 19999476, 21052080, 22221640, 24999345, 26665968, 28570680, 33332460, 39998952, 44443280, 49998690, 57141360, 66664920, 79997904, 99997380, 133329840, 199994760, 399989520]

約数ペア:

[(1, 399989520), (2, 199994760), (3, 133329840), (4, 99997380), (5, 79997904), (6, 66664920), (7, 57141360), (8, 49998690), (9, 44443280), (10, 39998952), (12, 33332460), (14, 28570680), (15, 26665968), (16, 24999345), (18, 22221640), (19, 21052080), (20, 19999476), (21, 19047120), (24, 16666230), (28, 14285340), (30, 13332984), (35, 11428272), (36, 11110820), (38, 10526040), (40, 9999738), (42, 9523560), (45, 8888656), (48, 8333115), (56, 7142670), (57, 7017360), (60, 6666492), (63, 6349040), (70, 5714136), (72, 5555410), (76, 5263020), (80, 4999869), (84, 4761780), (90, 4444328), (95, 4210416), (105, 3809424), (112, 3571335), (114, 3508680), (120, 3333246), (126, 3174520), (133, 3007440), (140, 2857068), (144, 2777705), (152, 2631510), (168, 2380890), (171, 2339120), (180, 2222164), (190, 2105208), (210, 1904712), (228, 1754340), (240, 1666623), (252, 1587260), (266, 1503720), (280, 1428534), (285, 1403472), (304, 1315755), (315, 1269808), (336, 1190445), (342, 1169560), (360, 1111082), (380, 1052604), (399, 1002480), (420, 952356), (456, 877170), (504, 793630), (532, 751860), (560, 714267), (570, 701736), (630, 634904), (665, 601488), (684, 584780), (720, 555541), (760, 526302), (798, 501240), (840, 476178), (855, 467824), (912, 438585), (1008, 396815), (1064, 375930), (1140, 350868), (1197, 334160), (1260, 317452), (1330, 300744), (1368, 292390), (1520, 263151), (1596, 250620), (1680, 238089), (1710, 233912), (1995, 200496), (2128, 187965), (2280, 175434), (2394, 167080), (2520, 158726), (2660, 150372), (2736, 146195), (3192, 125310), (3420, 116956), (3990, 100248), (4177, 95760), (4560, 87717), (4788, 83540), (5040, 79363), (5320, 75186), (5985, 66832), (6384, 62655), (6840, 58478), (7980, 50124), (8354, 47880), (9576, 41770), (10640, 37593), (11970, 33416), (12531, 31920), (13680, 29239), (15960, 25062), (16708, 23940), (19152, 20885)]