20325120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 66716160

約数和(自身を除く): 46391040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 79, 80, 96, 120, 128, 134, 158, 160, 192, 201, 237, 240, 256, 268, 316, 320, 335, 384, 395, 402, 474, 480, 536, 632, 640, 670, 768, 790, 804, 948, 960, 1005, 1072, 1185, 1264, 1280, 1340, 1580, 1608, 1896, 1920, 2010, 2144, 2370, 2528, 2680, 3160, 3216, 3792, 3840, 4020, 4288, 4740, 5056, 5293, 5360, 6320, 6432, 7584, 8040, 8576, 9480, 10112, 10586, 10720, 12640, 12864, 15168, 15879, 16080, 17152, 18960, 20224, 21172, 21440, 25280, 25728, 26465, 30336, 31758, 32160, 37920, 42344, 42880, 50560, 51456, 52930, 60672, 63516, 64320, 75840, 79395, 84688, 85760, 101120, 105860, 127032, 128640, 151680, 158790, 169376, 211720, 254064, 257280, 303360, 317580, 338752, 423440, 508128, 635160, 677504, 846880, 1016256, 1270320, 1355008, 1693760, 2032512, 2540640, 3387520, 4065024, 5081280, 6775040, 10162560, 20325120]

約数ペア:

[(1, 20325120), (2, 10162560), (3, 6775040), (4, 5081280), (5, 4065024), (6, 3387520), (8, 2540640), (10, 2032512), (12, 1693760), (15, 1355008), (16, 1270320), (20, 1016256), (24, 846880), (30, 677504), (32, 635160), (40, 508128), (48, 423440), (60, 338752), (64, 317580), (67, 303360), (79, 257280), (80, 254064), (96, 211720), (120, 169376), (128, 158790), (134, 151680), (158, 128640), (160, 127032), (192, 105860), (201, 101120), (237, 85760), (240, 84688), (256, 79395), (268, 75840), (316, 64320), (320, 63516), (335, 60672), (384, 52930), (395, 51456), (402, 50560), (474, 42880), (480, 42344), (536, 37920), (632, 32160), (640, 31758), (670, 30336), (768, 26465), (790, 25728), (804, 25280), (948, 21440), (960, 21172), (1005, 20224), (1072, 18960), (1185, 17152), (1264, 16080), (1280, 15879), (1340, 15168), (1580, 12864), (1608, 12640), (1896, 10720), (1920, 10586), (2010, 10112), (2144, 9480), (2370, 8576), (2528, 8040), (2680, 7584), (3160, 6432), (3216, 6320), (3792, 5360), (3840, 5293), (4020, 5056), (4288, 4740)]