1668215276

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 3923700480

約数和(自身を除く): 2255485204

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 38, 52, 62, 76, 91, 124, 133, 182, 217, 247, 251, 266, 364, 403, 434, 494, 502, 532, 589, 806, 868, 961, 988, 1004, 1178, 1612, 1729, 1757, 1922, 2356, 2821, 3263, 3458, 3514, 3844, 4123, 4769, 5642, 6526, 6727, 6916, 7028, 7657, 7781, 8246, 9538, 11284, 12493, 13052, 13454, 15314, 15562, 16492, 18259, 19076, 22841, 24986, 26908, 30628, 31124, 33383, 36518, 45682, 49972, 53599, 54467, 61997, 66766, 73036, 87451, 91364, 101153, 107198, 108934, 123994, 127813, 133532, 147839, 174902, 202306, 214396, 217868, 237367, 241211, 247988, 255626, 295678, 349804, 404612, 433979, 474734, 482422, 511252, 591356, 708071, 867958, 949468, 964844, 1034873, 1416142, 1661569, 1688477, 1735916, 1921907, 2069746, 2832284, 3135743, 3323138, 3376954, 3843814, 4139492, 4583009, 6271486, 6646276, 6753908, 7687628, 9166018, 12542972, 13453349, 18332036, 21950201, 26906698, 32081063, 43900402, 53813396, 59579117, 64162126, 87800804, 119158234, 128324252, 238316468, 417053819, 834107638, 1668215276]

約数ペア:

[(1, 1668215276), (2, 834107638), (4, 417053819), (7, 238316468), (13, 128324252), (14, 119158234), (19, 87800804), (26, 64162126), (28, 59579117), (31, 53813396), (38, 43900402), (52, 32081063), (62, 26906698), (76, 21950201), (91, 18332036), (124, 13453349), (133, 12542972), (182, 9166018), (217, 7687628), (247, 6753908), (251, 6646276), (266, 6271486), (364, 4583009), (403, 4139492), (434, 3843814), (494, 3376954), (502, 3323138), (532, 3135743), (589, 2832284), (806, 2069746), (868, 1921907), (961, 1735916), (988, 1688477), (1004, 1661569), (1178, 1416142), (1612, 1034873), (1729, 964844), (1757, 949468), (1922, 867958), (2356, 708071), (2821, 591356), (3263, 511252), (3458, 482422), (3514, 474734), (3844, 433979), (4123, 404612), (4769, 349804), (5642, 295678), (6526, 255626), (6727, 247988), (6916, 241211), (7028, 237367), (7657, 217868), (7781, 214396), (8246, 202306), (9538, 174902), (11284, 147839), (12493, 133532), (13052, 127813), (13454, 123994), (15314, 108934), (15562, 107198), (16492, 101153), (18259, 91364), (19076, 87451), (22841, 73036), (24986, 66766), (26908, 61997), (30628, 54467), (31124, 53599), (33383, 49972), (36518, 45682)]