28030780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 60520320

約数和(自身を除く): 32489540

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 157, 158, 226, 314, 316, 395, 452, 565, 628, 785, 790, 1130, 1570, 1580, 2260, 3140, 8927, 12403, 17741, 17854, 24806, 35482, 35708, 44635, 49612, 62015, 70964, 88705, 89270, 124030, 177410, 178540, 248060, 354820, 1401539, 2803078, 5606156, 7007695, 14015390, 28030780]

約数ペア:

[(1, 28030780), (2, 14015390), (4, 7007695), (5, 5606156), (10, 2803078), (20, 1401539), (79, 354820), (113, 248060), (157, 178540), (158, 177410), (226, 124030), (314, 89270), (316, 88705), (395, 70964), (452, 62015), (565, 49612), (628, 44635), (785, 35708), (790, 35482), (1130, 24806), (1570, 17854), (1580, 17741), (2260, 12403), (3140, 8927)]