20729540835

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1951}}^1$

素因数の和:2058

約数の個数: 144

約数和(自身を含む): 41133480960

約数和(自身を除く): 20403940125

約数列:

[1, 3, 5, 9, 15, 17, 19, 43, 45, 51, 57, 85, 95, 129, 153, 171, 215, 255, 285, 289, 323, 387, 645, 731, 765, 817, 855, 867, 969, 1445, 1615, 1935, 1951, 2193, 2451, 2601, 2907, 3655, 4085, 4335, 4845, 5491, 5853, 6579, 7353, 9755, 10965, 12255, 12427, 13005, 13889, 14535, 16473, 17559, 27455, 29265, 32895, 33167, 36765, 37069, 37281, 41667, 49419, 62135, 69445, 82365, 83893, 87795, 99501, 111207, 111843, 125001, 165835, 185345, 186405, 208335, 236113, 247095, 251679, 298503, 333621, 419465, 497505, 556035, 559215, 563839, 625005, 630173, 708339, 755037, 1180565, 1258395, 1426181, 1492515, 1593967, 1668105, 1691517, 1890519, 2125017, 2819195, 3150865, 3541695, 3775185, 4278543, 4781901, 5074551, 5671557, 7130905, 7969835, 8457585, 9452595, 10625085, 10712941, 12835629, 14345703, 21392715, 23909505, 24245077, 25372755, 27097439, 28357785, 32138823, 53564705, 64178145, 71728515, 72735231, 81292317, 96416469, 121225385, 135487195, 160694115, 218205693, 243876951, 363676155, 406461585, 460656463, 482082345, 1091028465, 1219384755, 1381969389, 2303282315, 4145908167, 6909846945, 20729540835]

約数ペア:

[(1, 20729540835), (3, 6909846945), (5, 4145908167), (9, 2303282315), (15, 1381969389), (17, 1219384755), (19, 1091028465), (43, 482082345), (45, 460656463), (51, 406461585), (57, 363676155), (85, 243876951), (95, 218205693), (129, 160694115), (153, 135487195), (171, 121225385), (215, 96416469), (255, 81292317), (285, 72735231), (289, 71728515), (323, 64178145), (387, 53564705), (645, 32138823), (731, 28357785), (765, 27097439), (817, 25372755), (855, 24245077), (867, 23909505), (969, 21392715), (1445, 14345703), (1615, 12835629), (1935, 10712941), (1951, 10625085), (2193, 9452595), (2451, 8457585), (2601, 7969835), (2907, 7130905), (3655, 5671557), (4085, 5074551), (4335, 4781901), (4845, 4278543), (5491, 3775185), (5853, 3541695), (6579, 3150865), (7353, 2819195), (9755, 2125017), (10965, 1890519), (12255, 1691517), (12427, 1668105), (13005, 1593967), (13889, 1492515), (14535, 1426181), (16473, 1258395), (17559, 1180565), (27455, 755037), (29265, 708339), (32895, 630173), (33167, 625005), (36765, 563839), (37069, 559215), (37281, 556035), (41667, 497505), (49419, 419465), (62135, 333621), (69445, 298503), (82365, 251679), (83893, 247095), (87795, 236113), (99501, 208335), (111207, 186405), (111843, 185345), (125001, 165835)]