19980864

素因数分解:

$2^6\times 3^3\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:425

約数の個数: 112

約数和(自身を含む): 60797440

約数和(自身を除く): 40816576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 64, 72, 93, 96, 108, 124, 144, 186, 192, 216, 248, 279, 288, 372, 373, 432, 496, 558, 576, 744, 746, 837, 864, 992, 1116, 1119, 1488, 1492, 1674, 1728, 1984, 2232, 2238, 2976, 2984, 3348, 3357, 4464, 4476, 5952, 5968, 6696, 6714, 8928, 8952, 10071, 11563, 11936, 13392, 13428, 17856, 17904, 20142, 23126, 23872, 26784, 26856, 34689, 35808, 40284, 46252, 53568, 53712, 69378, 71616, 80568, 92504, 104067, 107424, 138756, 161136, 185008, 208134, 214848, 277512, 312201, 322272, 370016, 416268, 555024, 624402, 644544, 740032, 832536, 1110048, 1248804, 1665072, 2220096, 2497608, 3330144, 4995216, 6660288, 9990432, 19980864]

約数ペア:

[(1, 19980864), (2, 9990432), (3, 6660288), (4, 4995216), (6, 3330144), (8, 2497608), (9, 2220096), (12, 1665072), (16, 1248804), (18, 1110048), (24, 832536), (27, 740032), (31, 644544), (32, 624402), (36, 555024), (48, 416268), (54, 370016), (62, 322272), (64, 312201), (72, 277512), (93, 214848), (96, 208134), (108, 185008), (124, 161136), (144, 138756), (186, 107424), (192, 104067), (216, 92504), (248, 80568), (279, 71616), (288, 69378), (372, 53712), (373, 53568), (432, 46252), (496, 40284), (558, 35808), (576, 34689), (744, 26856), (746, 26784), (837, 23872), (864, 23126), (992, 20142), (1116, 17904), (1119, 17856), (1488, 13428), (1492, 13392), (1674, 11936), (1728, 11563), (1984, 10071), (2232, 8952), (2238, 8928), (2976, 6714), (2984, 6696), (3348, 5968), (3357, 5952), (4464, 4476)]