208557615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3769}}^1$

素因数の和:3832

約数の個数: 64

約数和(自身を含む): 416931840

約数和(自身を除く): 208374225

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 51, 85, 93, 105, 119, 155, 217, 255, 357, 465, 527, 595, 651, 1085, 1581, 1785, 2635, 3255, 3689, 3769, 7905, 11067, 11307, 18445, 18845, 26383, 55335, 56535, 64073, 79149, 116839, 131915, 192219, 320365, 350517, 395745, 448511, 584195, 817873, 961095, 1345533, 1752585, 1986263, 2242555, 2453619, 4089365, 5958789, 6727665, 9931315, 12268095, 13903841, 29793945, 41711523, 69519205, 208557615]

約数ペア:

[(1, 208557615), (3, 69519205), (5, 41711523), (7, 29793945), (15, 13903841), (17, 12268095), (21, 9931315), (31, 6727665), (35, 5958789), (51, 4089365), (85, 2453619), (93, 2242555), (105, 1986263), (119, 1752585), (155, 1345533), (217, 961095), (255, 817873), (357, 584195), (465, 448511), (527, 395745), (595, 350517), (651, 320365), (1085, 192219), (1581, 131915), (1785, 116839), (2635, 79149), (3255, 64073), (3689, 56535), (3769, 55335), (7905, 26383), (11067, 18845), (11307, 18445)]