6440140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 15607872

約数和(自身を除く): 9167732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 293, 314, 586, 628, 785, 1099, 1172, 1465, 1570, 2051, 2198, 2930, 3140, 4102, 4396, 5495, 5860, 8204, 10255, 10990, 20510, 21980, 41020, 46001, 92002, 184004, 230005, 322007, 460010, 644014, 920020, 1288028, 1610035, 3220070, 6440140]

約数ペア:

[(1, 6440140), (2, 3220070), (4, 1610035), (5, 1288028), (7, 920020), (10, 644014), (14, 460010), (20, 322007), (28, 230005), (35, 184004), (70, 92002), (140, 46001), (157, 41020), (293, 21980), (314, 20510), (586, 10990), (628, 10255), (785, 8204), (1099, 5860), (1172, 5495), (1465, 4396), (1570, 4102), (2051, 3140), (2198, 2930)]