19747840

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 176

約数和(自身を含む): 58953600

約数和(自身を除く): 39205760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 29, 32, 35, 38, 40, 56, 58, 64, 70, 76, 80, 95, 112, 116, 128, 133, 140, 145, 152, 160, 190, 203, 224, 232, 256, 266, 280, 290, 304, 320, 380, 406, 448, 464, 512, 532, 551, 560, 580, 608, 640, 665, 760, 812, 896, 928, 1015, 1024, 1064, 1102, 1120, 1160, 1216, 1280, 1330, 1520, 1624, 1792, 1856, 2030, 2128, 2204, 2240, 2320, 2432, 2560, 2660, 2755, 3040, 3248, 3584, 3712, 3857, 4060, 4256, 4408, 4480, 4640, 4864, 5120, 5320, 5510, 6080, 6496, 7168, 7424, 7714, 8120, 8512, 8816, 8960, 9280, 9728, 10640, 11020, 12160, 12992, 14848, 15428, 16240, 17024, 17632, 17920, 18560, 19285, 19456, 21280, 22040, 24320, 25984, 29696, 30856, 32480, 34048, 35264, 35840, 37120, 38570, 42560, 44080, 48640, 51968, 61712, 64960, 68096, 70528, 74240, 77140, 85120, 88160, 97280, 103936, 123424, 129920, 136192, 141056, 148480, 154280, 170240, 176320, 207872, 246848, 259840, 282112, 308560, 340480, 352640, 493696, 519680, 564224, 617120, 680960, 705280, 987392, 1039360, 1234240, 1410560, 1974784, 2468480, 2821120, 3949568, 4936960, 9873920, 19747840]

約数ペア:

[(1, 19747840), (2, 9873920), (4, 4936960), (5, 3949568), (7, 2821120), (8, 2468480), (10, 1974784), (14, 1410560), (16, 1234240), (19, 1039360), (20, 987392), (28, 705280), (29, 680960), (32, 617120), (35, 564224), (38, 519680), (40, 493696), (56, 352640), (58, 340480), (64, 308560), (70, 282112), (76, 259840), (80, 246848), (95, 207872), (112, 176320), (116, 170240), (128, 154280), (133, 148480), (140, 141056), (145, 136192), (152, 129920), (160, 123424), (190, 103936), (203, 97280), (224, 88160), (232, 85120), (256, 77140), (266, 74240), (280, 70528), (290, 68096), (304, 64960), (320, 61712), (380, 51968), (406, 48640), (448, 44080), (464, 42560), (512, 38570), (532, 37120), (551, 35840), (560, 35264), (580, 34048), (608, 32480), (640, 30856), (665, 29696), (760, 25984), (812, 24320), (896, 22040), (928, 21280), (1015, 19456), (1024, 19285), (1064, 18560), (1102, 17920), (1120, 17632), (1160, 17024), (1216, 16240), (1280, 15428), (1330, 14848), (1520, 12992), (1624, 12160), (1792, 11020), (1856, 10640), (2030, 9728), (2128, 9280), (2204, 8960), (2240, 8816), (2320, 8512), (2432, 8120), (2560, 7714), (2660, 7424), (2755, 7168), (3040, 6496), (3248, 6080), (3584, 5510), (3712, 5320), (3857, 5120), (4060, 4864), (4256, 4640), (4408, 4480)]