676996820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{3931}}^1$

素因数の和:4128

約数の個数: 48

約数和(自身を含む): 1453267200

約数和(自身を除く): 776270380

約数列:

[1, 2, 4, 5, 10, 20, 79, 109, 158, 218, 316, 395, 436, 545, 790, 1090, 1580, 2180, 3931, 7862, 8611, 15724, 17222, 19655, 34444, 39310, 43055, 78620, 86110, 172220, 310549, 428479, 621098, 856958, 1242196, 1552745, 1713916, 2142395, 3105490, 4284790, 6210980, 8569580, 33849841, 67699682, 135399364, 169249205, 338498410, 676996820]

約数ペア:

[(1, 676996820), (2, 338498410), (4, 169249205), (5, 135399364), (10, 67699682), (20, 33849841), (79, 8569580), (109, 6210980), (158, 4284790), (218, 3105490), (316, 2142395), (395, 1713916), (436, 1552745), (545, 1242196), (790, 856958), (1090, 621098), (1580, 428479), (2180, 310549), (3931, 172220), (7862, 86110), (8611, 78620), (15724, 43055), (17222, 39310), (19655, 34444)]