399807120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2117

約数の個数: 160

約数和(自身を含む): 1335628800

約数和(自身を除く): 935821680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 43, 48, 57, 60, 76, 80, 86, 95, 114, 120, 129, 152, 172, 190, 215, 228, 240, 258, 285, 304, 344, 380, 430, 456, 516, 570, 645, 688, 760, 817, 860, 912, 1032, 1140, 1290, 1520, 1634, 1720, 2039, 2064, 2280, 2451, 2580, 3268, 3440, 4078, 4085, 4560, 4902, 5160, 6117, 6536, 8156, 8170, 9804, 10195, 10320, 12234, 12255, 13072, 16312, 16340, 19608, 20390, 24468, 24510, 30585, 32624, 32680, 38741, 39216, 40780, 48936, 49020, 61170, 65360, 77482, 81560, 87677, 97872, 98040, 116223, 122340, 154964, 163120, 175354, 193705, 196080, 232446, 244680, 263031, 309928, 350708, 387410, 438385, 464892, 489360, 526062, 581115, 619856, 701416, 774820, 876770, 929784, 1052124, 1162230, 1315155, 1402832, 1549640, 1665863, 1753540, 1859568, 2104248, 2324460, 2630310, 3099280, 3331726, 3507080, 4208496, 4648920, 4997589, 5260620, 6663452, 7014160, 8329315, 9297840, 9995178, 10521240, 13326904, 16658630, 19990356, 21042480, 24987945, 26653808, 33317260, 39980712, 49975890, 66634520, 79961424, 99951780, 133269040, 199903560, 399807120]

約数ペア:

[(1, 399807120), (2, 199903560), (3, 133269040), (4, 99951780), (5, 79961424), (6, 66634520), (8, 49975890), (10, 39980712), (12, 33317260), (15, 26653808), (16, 24987945), (19, 21042480), (20, 19990356), (24, 16658630), (30, 13326904), (38, 10521240), (40, 9995178), (43, 9297840), (48, 8329315), (57, 7014160), (60, 6663452), (76, 5260620), (80, 4997589), (86, 4648920), (95, 4208496), (114, 3507080), (120, 3331726), (129, 3099280), (152, 2630310), (172, 2324460), (190, 2104248), (215, 1859568), (228, 1753540), (240, 1665863), (258, 1549640), (285, 1402832), (304, 1315155), (344, 1162230), (380, 1052124), (430, 929784), (456, 876770), (516, 774820), (570, 701416), (645, 619856), (688, 581115), (760, 526062), (817, 489360), (860, 464892), (912, 438385), (1032, 387410), (1140, 350708), (1290, 309928), (1520, 263031), (1634, 244680), (1720, 232446), (2039, 196080), (2064, 193705), (2280, 175354), (2451, 163120), (2580, 154964), (3268, 122340), (3440, 116223), (4078, 98040), (4085, 97872), (4560, 87677), (4902, 81560), (5160, 77482), (6117, 65360), (6536, 61170), (8156, 49020), (8170, 48936), (9804, 40780), (10195, 39216), (10320, 38741), (12234, 32680), (12255, 32624), (13072, 30585), (16312, 24510), (16340, 24468), (19608, 20390)]