20284416

素因数分解:

$2^{10}\times 3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 132

約数和(自身を含む): 61311744

約数和(自身を除く): 41027328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 71, 72, 93, 96, 124, 128, 142, 144, 186, 192, 213, 248, 256, 279, 284, 288, 372, 384, 426, 496, 512, 558, 568, 576, 639, 744, 768, 852, 992, 1024, 1116, 1136, 1152, 1278, 1488, 1536, 1704, 1984, 2201, 2232, 2272, 2304, 2556, 2976, 3072, 3408, 3968, 4402, 4464, 4544, 4608, 5112, 5952, 6603, 6816, 7936, 8804, 8928, 9088, 9216, 10224, 11904, 13206, 13632, 15872, 17608, 17856, 18176, 19809, 20448, 23808, 26412, 27264, 31744, 35216, 35712, 36352, 39618, 40896, 47616, 52824, 54528, 70432, 71424, 72704, 79236, 81792, 95232, 105648, 109056, 140864, 142848, 158472, 163584, 211296, 218112, 281728, 285696, 316944, 327168, 422592, 563456, 633888, 654336, 845184, 1126912, 1267776, 1690368, 2253824, 2535552, 3380736, 5071104, 6761472, 10142208, 20284416]

約数ペア:

[(1, 20284416), (2, 10142208), (3, 6761472), (4, 5071104), (6, 3380736), (8, 2535552), (9, 2253824), (12, 1690368), (16, 1267776), (18, 1126912), (24, 845184), (31, 654336), (32, 633888), (36, 563456), (48, 422592), (62, 327168), (64, 316944), (71, 285696), (72, 281728), (93, 218112), (96, 211296), (124, 163584), (128, 158472), (142, 142848), (144, 140864), (186, 109056), (192, 105648), (213, 95232), (248, 81792), (256, 79236), (279, 72704), (284, 71424), (288, 70432), (372, 54528), (384, 52824), (426, 47616), (496, 40896), (512, 39618), (558, 36352), (568, 35712), (576, 35216), (639, 31744), (744, 27264), (768, 26412), (852, 23808), (992, 20448), (1024, 19809), (1116, 18176), (1136, 17856), (1152, 17608), (1278, 15872), (1488, 13632), (1536, 13206), (1704, 11904), (1984, 10224), (2201, 9216), (2232, 9088), (2272, 8928), (2304, 8804), (2556, 7936), (2976, 6816), (3072, 6603), (3408, 5952), (3968, 5112), (4402, 4608), (4464, 4544)]