5120780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 12472320

約数和(自身を除く): 7351540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 463, 553, 790, 926, 1106, 1580, 1852, 2212, 2315, 2765, 3241, 4630, 5530, 6482, 9260, 11060, 12964, 16205, 32410, 36577, 64820, 73154, 146308, 182885, 256039, 365770, 512078, 731540, 1024156, 1280195, 2560390, 5120780]

約数ペア:

[(1, 5120780), (2, 2560390), (4, 1280195), (5, 1024156), (7, 731540), (10, 512078), (14, 365770), (20, 256039), (28, 182885), (35, 146308), (70, 73154), (79, 64820), (140, 36577), (158, 32410), (316, 16205), (395, 12964), (463, 11060), (553, 9260), (790, 6482), (926, 5530), (1106, 4630), (1580, 3241), (1852, 2765), (2212, 2315)]