20123497728

素因数分解:

$2^8\times 3^2\times {\mathrm{31}}^1\times {\mathrm{281747}}^1$

素因数の和:281800

約数の個数: 108

約数和(自身を含む): 59892862848

約数和(自身を除く): 39769365120

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 93, 96, 124, 128, 144, 186, 192, 248, 256, 279, 288, 372, 384, 496, 558, 576, 744, 768, 992, 1116, 1152, 1488, 1984, 2232, 2304, 2976, 3968, 4464, 5952, 7936, 8928, 11904, 17856, 23808, 35712, 71424, 281747, 563494, 845241, 1126988, 1690482, 2253976, 2535723, 3380964, 4507952, 5071446, 6761928, 8734157, 9015904, 10142892, 13523856, 17468314, 18031808, 20285784, 26202471, 27047712, 34936628, 36063616, 40571568, 52404942, 54095424, 69873256, 72127232, 78607413, 81143136, 104809884, 108190848, 139746512, 157214826, 162286272, 209619768, 216381696, 279493024, 314429652, 324572544, 419239536, 558986048, 628859304, 649145088, 838479072, 1117972096, 1257718608, 1676958144, 2235944192, 2515437216, 3353916288, 5030874432, 6707832576, 10061748864, 20123497728]

約数ペア:

[(1, 20123497728), (2, 10061748864), (3, 6707832576), (4, 5030874432), (6, 3353916288), (8, 2515437216), (9, 2235944192), (12, 1676958144), (16, 1257718608), (18, 1117972096), (24, 838479072), (31, 649145088), (32, 628859304), (36, 558986048), (48, 419239536), (62, 324572544), (64, 314429652), (72, 279493024), (93, 216381696), (96, 209619768), (124, 162286272), (128, 157214826), (144, 139746512), (186, 108190848), (192, 104809884), (248, 81143136), (256, 78607413), (279, 72127232), (288, 69873256), (372, 54095424), (384, 52404942), (496, 40571568), (558, 36063616), (576, 34936628), (744, 27047712), (768, 26202471), (992, 20285784), (1116, 18031808), (1152, 17468314), (1488, 13523856), (1984, 10142892), (2232, 9015904), (2304, 8734157), (2976, 6761928), (3968, 5071446), (4464, 4507952), (5952, 3380964), (7936, 2535723), (8928, 2253976), (11904, 1690482), (17856, 1126988), (23808, 845241), (35712, 563494), (71424, 281747)]