20527360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 58867200

約数和(自身を除く): 38339840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 79, 80, 112, 116, 128, 140, 145, 158, 160, 203, 224, 232, 256, 280, 290, 316, 320, 395, 406, 448, 464, 553, 560, 580, 632, 640, 790, 812, 896, 928, 1015, 1106, 1120, 1160, 1264, 1280, 1580, 1624, 1792, 1856, 2030, 2212, 2240, 2291, 2320, 2528, 2765, 3160, 3248, 3712, 4060, 4424, 4480, 4582, 4640, 5056, 5530, 6320, 6496, 7424, 8120, 8848, 8960, 9164, 9280, 10112, 11060, 11455, 12640, 12992, 16037, 16240, 17696, 18328, 18560, 20224, 22120, 22910, 25280, 25984, 32074, 32480, 35392, 36656, 37120, 44240, 45820, 50560, 51968, 64148, 64960, 70784, 73312, 80185, 88480, 91640, 101120, 128296, 129920, 141568, 146624, 160370, 176960, 183280, 256592, 259840, 293248, 320740, 353920, 366560, 513184, 586496, 641480, 707840, 733120, 1026368, 1282960, 1466240, 2052736, 2565920, 2932480, 4105472, 5131840, 10263680, 20527360]

約数ペア:

[(1, 20527360), (2, 10263680), (4, 5131840), (5, 4105472), (7, 2932480), (8, 2565920), (10, 2052736), (14, 1466240), (16, 1282960), (20, 1026368), (28, 733120), (29, 707840), (32, 641480), (35, 586496), (40, 513184), (56, 366560), (58, 353920), (64, 320740), (70, 293248), (79, 259840), (80, 256592), (112, 183280), (116, 176960), (128, 160370), (140, 146624), (145, 141568), (158, 129920), (160, 128296), (203, 101120), (224, 91640), (232, 88480), (256, 80185), (280, 73312), (290, 70784), (316, 64960), (320, 64148), (395, 51968), (406, 50560), (448, 45820), (464, 44240), (553, 37120), (560, 36656), (580, 35392), (632, 32480), (640, 32074), (790, 25984), (812, 25280), (896, 22910), (928, 22120), (1015, 20224), (1106, 18560), (1120, 18328), (1160, 17696), (1264, 16240), (1280, 16037), (1580, 12992), (1624, 12640), (1792, 11455), (1856, 11060), (2030, 10112), (2212, 9280), (2240, 9164), (2291, 8960), (2320, 8848), (2528, 8120), (2765, 7424), (3160, 6496), (3248, 6320), (3712, 5530), (4060, 5056), (4424, 4640), (4480, 4582)]