168856640

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3361}}^1$

素因数の和:3535

約数の個数: 56

約数和(自身を含む): 404771352

約数和(自身を除く): 235914712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 1256, 1570, 2512, 3140, 3361, 5024, 6280, 6722, 10048, 12560, 13444, 16805, 25120, 26888, 33610, 50240, 53776, 67220, 107552, 134440, 215104, 268880, 527677, 537760, 1055354, 1075520, 2110708, 2638385, 4221416, 5276770, 8442832, 10553540, 16885664, 21107080, 33771328, 42214160, 84428320, 168856640]

約数ペア:

[(1, 168856640), (2, 84428320), (4, 42214160), (5, 33771328), (8, 21107080), (10, 16885664), (16, 10553540), (20, 8442832), (32, 5276770), (40, 4221416), (64, 2638385), (80, 2110708), (157, 1075520), (160, 1055354), (314, 537760), (320, 527677), (628, 268880), (785, 215104), (1256, 134440), (1570, 107552), (2512, 67220), (3140, 53776), (3361, 50240), (5024, 33610), (6280, 26888), (6722, 25120), (10048, 16805), (12560, 13444)]