20033966080

素因数分解:

$2^{12}\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18457}}^1$

素因数の和:18539

約数の個数: 104

約数和(自身を含む): 48985390872

約数和(自身を除く): 28951424792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 512, 530, 640, 848, 1024, 1060, 1280, 1696, 2048, 2120, 2560, 3392, 4096, 4240, 5120, 6784, 8480, 10240, 13568, 16960, 18457, 20480, 27136, 33920, 36914, 54272, 67840, 73828, 92285, 108544, 135680, 147656, 184570, 217088, 271360, 295312, 369140, 542720, 590624, 738280, 978221, 1085440, 1181248, 1476560, 1956442, 2362496, 2953120, 3912884, 4724992, 4891105, 5906240, 7825768, 9449984, 9782210, 11812480, 15651536, 18899968, 19564420, 23624960, 31303072, 37799936, 39128840, 47249920, 62606144, 75599872, 78257680, 94499840, 125212288, 156515360, 188999680, 250424576, 313030720, 377999360, 500849152, 626061440, 1001698304, 1252122880, 2003396608, 2504245760, 4006793216, 5008491520, 10016983040, 20033966080]

約数ペア:

[(1, 20033966080), (2, 10016983040), (4, 5008491520), (5, 4006793216), (8, 2504245760), (10, 2003396608), (16, 1252122880), (20, 1001698304), (32, 626061440), (40, 500849152), (53, 377999360), (64, 313030720), (80, 250424576), (106, 188999680), (128, 156515360), (160, 125212288), (212, 94499840), (256, 78257680), (265, 75599872), (320, 62606144), (424, 47249920), (512, 39128840), (530, 37799936), (640, 31303072), (848, 23624960), (1024, 19564420), (1060, 18899968), (1280, 15651536), (1696, 11812480), (2048, 9782210), (2120, 9449984), (2560, 7825768), (3392, 5906240), (4096, 4891105), (4240, 4724992), (5120, 3912884), (6784, 2953120), (8480, 2362496), (10240, 1956442), (13568, 1476560), (16960, 1181248), (18457, 1085440), (20480, 978221), (27136, 738280), (33920, 590624), (36914, 542720), (54272, 369140), (67840, 295312), (73828, 271360), (92285, 217088), (108544, 184570), (135680, 147656)]