388704505

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{839}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 569963520

約数和(自身を除く): 181259015

約数列:

[1, 5, 7, 31, 35, 49, 61, 155, 217, 245, 305, 427, 839, 1085, 1519, 1891, 2135, 2989, 4195, 5873, 7595, 9455, 13237, 14945, 26009, 29365, 41111, 51179, 66185, 92659, 130045, 182063, 205555, 255895, 358253, 463295, 910315, 1274441, 1586549, 1791265, 2507771, 6372205, 7932745, 11105843, 12538855, 55529215, 77740901, 388704505]

約数ペア:

[(1, 388704505), (5, 77740901), (7, 55529215), (31, 12538855), (35, 11105843), (49, 7932745), (61, 6372205), (155, 2507771), (217, 1791265), (245, 1586549), (305, 1274441), (427, 910315), (839, 463295), (1085, 358253), (1519, 255895), (1891, 205555), (2135, 182063), (2989, 130045), (4195, 92659), (5873, 66185), (7595, 51179), (9455, 41111), (13237, 29365), (14945, 26009)]