138819985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 181440000

約数和(自身を除く): 42620015

約数列:

[1, 5, 19, 53, 79, 95, 265, 349, 395, 1007, 1501, 1745, 4187, 5035, 6631, 7505, 18497, 20935, 27571, 33155, 79553, 92485, 137855, 351443, 397765, 523849, 1461263, 1757215, 2619245, 7306315, 27763997, 138819985]

約数ペア:

[(1, 138819985), (5, 27763997), (19, 7306315), (53, 2619245), (79, 1757215), (95, 1461263), (265, 523849), (349, 397765), (395, 351443), (1007, 137855), (1501, 92485), (1745, 79553), (4187, 33155), (5035, 27571), (6631, 20935), (7505, 18497)]