28737280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 81383904

約数和(自身を除く): 52646624

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 157, 160, 176, 208, 220, 256, 260, 286, 314, 320, 352, 416, 440, 520, 572, 628, 640, 704, 715, 785, 832, 880, 1040, 1144, 1256, 1280, 1408, 1430, 1570, 1664, 1727, 1760, 2041, 2080, 2288, 2512, 2816, 2860, 3140, 3328, 3454, 3520, 4082, 4160, 4576, 5024, 5720, 6280, 6908, 7040, 8164, 8320, 8635, 9152, 10048, 10205, 11440, 12560, 13816, 14080, 16328, 16640, 17270, 18304, 20096, 20410, 22451, 22880, 25120, 27632, 32656, 34540, 36608, 40192, 40820, 44902, 45760, 50240, 55264, 65312, 69080, 81640, 89804, 91520, 100480, 110528, 112255, 130624, 138160, 163280, 179608, 183040, 200960, 221056, 224510, 261248, 276320, 326560, 359216, 442112, 449020, 522496, 552640, 653120, 718432, 898040, 1105280, 1306240, 1436864, 1796080, 2210560, 2612480, 2873728, 3592160, 5747456, 7184320, 14368640, 28737280]

約数ペア:

[(1, 28737280), (2, 14368640), (4, 7184320), (5, 5747456), (8, 3592160), (10, 2873728), (11, 2612480), (13, 2210560), (16, 1796080), (20, 1436864), (22, 1306240), (26, 1105280), (32, 898040), (40, 718432), (44, 653120), (52, 552640), (55, 522496), (64, 449020), (65, 442112), (80, 359216), (88, 326560), (104, 276320), (110, 261248), (128, 224510), (130, 221056), (143, 200960), (157, 183040), (160, 179608), (176, 163280), (208, 138160), (220, 130624), (256, 112255), (260, 110528), (286, 100480), (314, 91520), (320, 89804), (352, 81640), (416, 69080), (440, 65312), (520, 55264), (572, 50240), (628, 45760), (640, 44902), (704, 40820), (715, 40192), (785, 36608), (832, 34540), (880, 32656), (1040, 27632), (1144, 25120), (1256, 22880), (1280, 22451), (1408, 20410), (1430, 20096), (1570, 18304), (1664, 17270), (1727, 16640), (1760, 16328), (2041, 14080), (2080, 13816), (2288, 12560), (2512, 11440), (2816, 10205), (2860, 10048), (3140, 9152), (3328, 8635), (3454, 8320), (3520, 8164), (4082, 7040), (4160, 6908), (4576, 6280), (5024, 5720)]