208021660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:896

約数の個数: 144

約数和(自身を含む): 579156480

約数和(自身を除く): 371134820

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 49, 55, 70, 77, 92, 98, 110, 115, 140, 154, 161, 196, 220, 230, 245, 253, 308, 322, 385, 460, 490, 506, 539, 644, 770, 805, 839, 980, 1012, 1078, 1127, 1265, 1540, 1610, 1678, 1771, 2156, 2254, 2530, 2695, 3220, 3356, 3542, 4195, 4508, 5060, 5390, 5635, 5873, 7084, 8390, 8855, 9229, 10780, 11270, 11746, 12397, 16780, 17710, 18458, 19297, 22540, 23492, 24794, 29365, 35420, 36916, 38594, 41111, 46145, 49588, 58730, 61985, 64603, 77188, 82222, 92290, 96485, 117460, 123970, 129206, 135079, 164444, 184580, 192970, 205555, 212267, 247940, 258412, 270158, 323015, 385940, 411110, 424534, 452221, 540316, 646030, 675395, 822220, 849068, 904442, 945553, 1061335, 1292060, 1350790, 1485869, 1808884, 1891106, 2122670, 2261105, 2701580, 2971738, 3782212, 4245340, 4522210, 4727765, 5943476, 7429345, 9044420, 9455530, 10401083, 14858690, 18911060, 20802166, 29717380, 41604332, 52005415, 104010830, 208021660]

約数ペア:

[(1, 208021660), (2, 104010830), (4, 52005415), (5, 41604332), (7, 29717380), (10, 20802166), (11, 18911060), (14, 14858690), (20, 10401083), (22, 9455530), (23, 9044420), (28, 7429345), (35, 5943476), (44, 4727765), (46, 4522210), (49, 4245340), (55, 3782212), (70, 2971738), (77, 2701580), (92, 2261105), (98, 2122670), (110, 1891106), (115, 1808884), (140, 1485869), (154, 1350790), (161, 1292060), (196, 1061335), (220, 945553), (230, 904442), (245, 849068), (253, 822220), (308, 675395), (322, 646030), (385, 540316), (460, 452221), (490, 424534), (506, 411110), (539, 385940), (644, 323015), (770, 270158), (805, 258412), (839, 247940), (980, 212267), (1012, 205555), (1078, 192970), (1127, 184580), (1265, 164444), (1540, 135079), (1610, 129206), (1678, 123970), (1771, 117460), (2156, 96485), (2254, 92290), (2530, 82222), (2695, 77188), (3220, 64603), (3356, 61985), (3542, 58730), (4195, 49588), (4508, 46145), (5060, 41111), (5390, 38594), (5635, 36916), (5873, 35420), (7084, 29365), (8390, 24794), (8855, 23492), (9229, 22540), (10780, 19297), (11270, 18458), (11746, 17710), (12397, 16780)]