81812480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:102

約数の個数: 132

約数和(自身を含む): 213952440

約数和(自身を除く): 132139960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 116, 128, 145, 152, 160, 190, 232, 256, 290, 304, 320, 380, 464, 512, 551, 580, 608, 640, 760, 841, 928, 1024, 1102, 1160, 1216, 1280, 1520, 1682, 1856, 2204, 2320, 2432, 2560, 2755, 3040, 3364, 3712, 4205, 4408, 4640, 4864, 5120, 5510, 6080, 6728, 7424, 8410, 8816, 9280, 9728, 11020, 12160, 13456, 14848, 15979, 16820, 17632, 18560, 19456, 22040, 24320, 26912, 29696, 31958, 33640, 35264, 37120, 44080, 48640, 53824, 63916, 67280, 70528, 74240, 79895, 88160, 97280, 107648, 127832, 134560, 141056, 148480, 159790, 176320, 215296, 255664, 269120, 282112, 319580, 352640, 430592, 511328, 538240, 564224, 639160, 705280, 861184, 1022656, 1076480, 1278320, 1410560, 2045312, 2152960, 2556640, 2821120, 4090624, 4305920, 5113280, 8181248, 10226560, 16362496, 20453120, 40906240, 81812480]

約数ペア:

[(1, 81812480), (2, 40906240), (4, 20453120), (5, 16362496), (8, 10226560), (10, 8181248), (16, 5113280), (19, 4305920), (20, 4090624), (29, 2821120), (32, 2556640), (38, 2152960), (40, 2045312), (58, 1410560), (64, 1278320), (76, 1076480), (80, 1022656), (95, 861184), (116, 705280), (128, 639160), (145, 564224), (152, 538240), (160, 511328), (190, 430592), (232, 352640), (256, 319580), (290, 282112), (304, 269120), (320, 255664), (380, 215296), (464, 176320), (512, 159790), (551, 148480), (580, 141056), (608, 134560), (640, 127832), (760, 107648), (841, 97280), (928, 88160), (1024, 79895), (1102, 74240), (1160, 70528), (1216, 67280), (1280, 63916), (1520, 53824), (1682, 48640), (1856, 44080), (2204, 37120), (2320, 35264), (2432, 33640), (2560, 31958), (2755, 29696), (3040, 26912), (3364, 24320), (3712, 22040), (4205, 19456), (4408, 18560), (4640, 17632), (4864, 16820), (5120, 15979), (5510, 14848), (6080, 13456), (6728, 12160), (7424, 11020), (8410, 9728), (8816, 9280)]