18345735

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 34320000

約数和(自身を除く): 15974265

約数列:

[1, 3, 5, 9, 15, 19, 43, 45, 57, 95, 129, 171, 215, 285, 387, 499, 645, 817, 855, 1497, 1935, 2451, 2495, 4085, 4491, 7353, 7485, 9481, 12255, 21457, 22455, 28443, 36765, 47405, 64371, 85329, 107285, 142215, 193113, 321855, 407683, 426645, 965565, 1223049, 2038415, 3669147, 6115245, 18345735]

約数ペア:

[(1, 18345735), (3, 6115245), (5, 3669147), (9, 2038415), (15, 1223049), (19, 965565), (43, 426645), (45, 407683), (57, 321855), (95, 193113), (129, 142215), (171, 107285), (215, 85329), (285, 64371), (387, 47405), (499, 36765), (645, 28443), (817, 22455), (855, 21457), (1497, 12255), (1935, 9481), (2451, 7485), (2495, 7353), (4085, 4491)]