51280480

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4057}}^1$

素因数の和:4151

約数の個数: 48

約数和(自身を含む): 122713920

約数和(自身を除く): 71433440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 4057, 6320, 8114, 12640, 16228, 20285, 32456, 40570, 64912, 81140, 129824, 162280, 320503, 324560, 641006, 649120, 1282012, 1602515, 2564024, 3205030, 5128048, 6410060, 10256096, 12820120, 25640240, 51280480]

約数ペア:

[(1, 51280480), (2, 25640240), (4, 12820120), (5, 10256096), (8, 6410060), (10, 5128048), (16, 3205030), (20, 2564024), (32, 1602515), (40, 1282012), (79, 649120), (80, 641006), (158, 324560), (160, 320503), (316, 162280), (395, 129824), (632, 81140), (790, 64912), (1264, 40570), (1580, 32456), (2528, 20285), (3160, 16228), (4057, 12640), (6320, 8114)]