280125440

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{977}}^1$

素因数の和:1015

約数の個数: 112

約数和(自身を含む): 769083552

約数和(自身を除く): 488958112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 977, 1024, 1120, 1280, 1792, 1954, 2048, 2240, 2560, 3584, 3908, 4096, 4480, 4885, 5120, 6839, 7168, 7816, 8192, 8960, 9770, 10240, 13678, 14336, 15632, 17920, 19540, 20480, 27356, 28672, 31264, 34195, 35840, 39080, 40960, 54712, 57344, 62528, 68390, 71680, 78160, 109424, 125056, 136780, 143360, 156320, 218848, 250112, 273560, 286720, 312640, 437696, 500224, 547120, 625280, 875392, 1000448, 1094240, 1250560, 1750784, 2000896, 2188480, 2501120, 3501568, 4001792, 4376960, 5002240, 7003136, 8003584, 8753920, 10004480, 14006272, 17507840, 20008960, 28012544, 35015680, 40017920, 56025088, 70031360, 140062720, 280125440]

約数ペア:

[(1, 280125440), (2, 140062720), (4, 70031360), (5, 56025088), (7, 40017920), (8, 35015680), (10, 28012544), (14, 20008960), (16, 17507840), (20, 14006272), (28, 10004480), (32, 8753920), (35, 8003584), (40, 7003136), (56, 5002240), (64, 4376960), (70, 4001792), (80, 3501568), (112, 2501120), (128, 2188480), (140, 2000896), (160, 1750784), (224, 1250560), (256, 1094240), (280, 1000448), (320, 875392), (448, 625280), (512, 547120), (560, 500224), (640, 437696), (896, 312640), (977, 286720), (1024, 273560), (1120, 250112), (1280, 218848), (1792, 156320), (1954, 143360), (2048, 136780), (2240, 125056), (2560, 109424), (3584, 78160), (3908, 71680), (4096, 68390), (4480, 62528), (4885, 57344), (5120, 54712), (6839, 40960), (7168, 39080), (7816, 35840), (8192, 34195), (8960, 31264), (9770, 28672), (10240, 27356), (13678, 20480), (14336, 19540), (15632, 17920)]