20512031776

素因数分解:

$2^5\times {\mathrm{47}}^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:303

約数の個数: 144

約数和(自身を含む): 43162362432

約数和(自身を除く): 22650330656

約数列:

[1, 2, 4, 8, 16, 32, 47, 61, 67, 71, 94, 122, 134, 142, 188, 244, 268, 284, 376, 488, 536, 568, 752, 976, 1072, 1136, 1504, 1952, 2144, 2209, 2272, 2867, 3149, 3337, 4087, 4331, 4418, 4757, 5734, 6298, 6674, 8174, 8662, 8836, 9514, 11468, 12596, 13348, 16348, 17324, 17672, 19028, 22936, 25192, 26696, 32696, 34648, 35344, 38056, 45872, 50384, 53392, 65392, 69296, 70688, 76112, 91744, 100768, 106784, 130784, 134749, 138592, 148003, 152224, 156839, 192089, 203557, 223579, 269498, 290177, 296006, 313678, 384178, 407114, 447158, 538996, 580354, 592012, 627356, 768356, 814228, 894316, 1077992, 1160708, 1184024, 1254712, 1536712, 1628456, 1788632, 2155984, 2321416, 2368048, 2509424, 3073424, 3256912, 3577264, 4311968, 4642832, 4736096, 5018848, 6146848, 6513824, 7154528, 9028183, 9285664, 9567179, 10508213, 13638319, 18056366, 19134358, 21016426, 27276638, 36112732, 38268716, 42032852, 54553276, 72225464, 76537432, 84065704, 109106552, 144450928, 153074864, 168131408, 218213104, 288901856, 306149728, 336262816, 436426208, 641000993, 1282001986, 2564003972, 5128007944, 10256015888, 20512031776]

約数ペア:

[(1, 20512031776), (2, 10256015888), (4, 5128007944), (8, 2564003972), (16, 1282001986), (32, 641000993), (47, 436426208), (61, 336262816), (67, 306149728), (71, 288901856), (94, 218213104), (122, 168131408), (134, 153074864), (142, 144450928), (188, 109106552), (244, 84065704), (268, 76537432), (284, 72225464), (376, 54553276), (488, 42032852), (536, 38268716), (568, 36112732), (752, 27276638), (976, 21016426), (1072, 19134358), (1136, 18056366), (1504, 13638319), (1952, 10508213), (2144, 9567179), (2209, 9285664), (2272, 9028183), (2867, 7154528), (3149, 6513824), (3337, 6146848), (4087, 5018848), (4331, 4736096), (4418, 4642832), (4757, 4311968), (5734, 3577264), (6298, 3256912), (6674, 3073424), (8174, 2509424), (8662, 2368048), (8836, 2321416), (9514, 2155984), (11468, 1788632), (12596, 1628456), (13348, 1536712), (16348, 1254712), (17324, 1184024), (17672, 1160708), (19028, 1077992), (22936, 894316), (25192, 814228), (26696, 768356), (32696, 627356), (34648, 592012), (35344, 580354), (38056, 538996), (45872, 447158), (50384, 407114), (53392, 384178), (65392, 313678), (69296, 296006), (70688, 290177), (76112, 269498), (91744, 223579), (100768, 203557), (106784, 192089), (130784, 156839), (134749, 152224), (138592, 148003)]