21788480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 112

約数和(自身を含む): 60569856

約数和(自身を除く): 38781376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 137, 140, 142, 160, 224, 274, 280, 284, 320, 355, 448, 497, 548, 560, 568, 685, 710, 959, 994, 1096, 1120, 1136, 1370, 1420, 1918, 1988, 2192, 2240, 2272, 2485, 2740, 2840, 3836, 3976, 4384, 4544, 4795, 4970, 5480, 5680, 7672, 7952, 8768, 9590, 9727, 9940, 10960, 11360, 15344, 15904, 19180, 19454, 19880, 21920, 22720, 30688, 31808, 38360, 38908, 39760, 43840, 48635, 61376, 68089, 76720, 77816, 79520, 97270, 136178, 153440, 155632, 159040, 194540, 272356, 306880, 311264, 340445, 389080, 544712, 622528, 680890, 778160, 1089424, 1361780, 1556320, 2178848, 2723560, 3112640, 4357696, 5447120, 10894240, 21788480]

約数ペア:

[(1, 21788480), (2, 10894240), (4, 5447120), (5, 4357696), (7, 3112640), (8, 2723560), (10, 2178848), (14, 1556320), (16, 1361780), (20, 1089424), (28, 778160), (32, 680890), (35, 622528), (40, 544712), (56, 389080), (64, 340445), (70, 311264), (71, 306880), (80, 272356), (112, 194540), (137, 159040), (140, 155632), (142, 153440), (160, 136178), (224, 97270), (274, 79520), (280, 77816), (284, 76720), (320, 68089), (355, 61376), (448, 48635), (497, 43840), (548, 39760), (560, 38908), (568, 38360), (685, 31808), (710, 30688), (959, 22720), (994, 21920), (1096, 19880), (1120, 19454), (1136, 19180), (1370, 15904), (1420, 15344), (1918, 11360), (1988, 10960), (2192, 9940), (2240, 9727), (2272, 9590), (2485, 8768), (2740, 7952), (2840, 7672), (3836, 5680), (3976, 5480), (4384, 4970), (4544, 4795)]