7805140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 18893952

約数和(自身を除く): 11088812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 283, 394, 566, 788, 985, 1132, 1379, 1415, 1970, 1981, 2758, 2830, 3940, 3962, 5516, 5660, 6895, 7924, 9905, 13790, 19810, 27580, 39620, 55751, 111502, 223004, 278755, 390257, 557510, 780514, 1115020, 1561028, 1951285, 3902570, 7805140]

約数ペア:

[(1, 7805140), (2, 3902570), (4, 1951285), (5, 1561028), (7, 1115020), (10, 780514), (14, 557510), (20, 390257), (28, 278755), (35, 223004), (70, 111502), (140, 55751), (197, 39620), (283, 27580), (394, 19810), (566, 13790), (788, 9905), (985, 7924), (1132, 6895), (1379, 5660), (1415, 5516), (1970, 3962), (1981, 3940), (2758, 2830)]