1988825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 2678400

約数和(自身を除く): 689575

約数列:

[1, 5, 19, 25, 53, 79, 95, 265, 395, 475, 1007, 1325, 1501, 1975, 4187, 5035, 7505, 20935, 25175, 37525, 79553, 104675, 397765, 1988825]

約数ペア:

[(1, 1988825), (5, 397765), (19, 104675), (25, 79553), (53, 37525), (79, 25175), (95, 20935), (265, 7505), (395, 5035), (475, 4187), (1007, 1975), (1325, 1501)]