20213676840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{3617}}^1\times {\mathrm{6653}}^1$

素因数の和:10291

約数の個数: 128

約数和(自身を含む): 69333615360

約数和(自身を除く): 49119938520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 3617, 6653, 7234, 10851, 13306, 14468, 18085, 19959, 21702, 25319, 26612, 28936, 33265, 36170, 39918, 43404, 46571, 50638, 53224, 54255, 66530, 72340, 75957, 79836, 86808, 93142, 99795, 101276, 108510, 126595, 133060, 139713, 144680, 151914, 159672, 186284, 199590, 202552, 217020, 232855, 253190, 266120, 279426, 303828, 372568, 379785, 399180, 434040, 465710, 506380, 558852, 607656, 698565, 759570, 798360, 931420, 1012760, 1117704, 1397130, 1519140, 1862840, 2794260, 3038280, 5588520, 24063901, 48127802, 72191703, 96255604, 120319505, 144383406, 168447307, 192511208, 240639010, 288766812, 336894614, 360958515, 481278020, 505341921, 577533624, 673789228, 721917030, 842236535, 962556040, 1010683842, 1347578456, 1443834060, 1684473070, 2021367684, 2526709605, 2887668120, 3368946140, 4042735368, 5053419210, 6737892280, 10106838420, 20213676840]

約数ペア:

[(1, 20213676840), (2, 10106838420), (3, 6737892280), (4, 5053419210), (5, 4042735368), (6, 3368946140), (7, 2887668120), (8, 2526709605), (10, 2021367684), (12, 1684473070), (14, 1443834060), (15, 1347578456), (20, 1010683842), (21, 962556040), (24, 842236535), (28, 721917030), (30, 673789228), (35, 577533624), (40, 505341921), (42, 481278020), (56, 360958515), (60, 336894614), (70, 288766812), (84, 240639010), (105, 192511208), (120, 168447307), (140, 144383406), (168, 120319505), (210, 96255604), (280, 72191703), (420, 48127802), (840, 24063901), (3617, 5588520), (6653, 3038280), (7234, 2794260), (10851, 1862840), (13306, 1519140), (14468, 1397130), (18085, 1117704), (19959, 1012760), (21702, 931420), (25319, 798360), (26612, 759570), (28936, 698565), (33265, 607656), (36170, 558852), (39918, 506380), (43404, 465710), (46571, 434040), (50638, 399180), (53224, 379785), (54255, 372568), (66530, 303828), (72340, 279426), (75957, 266120), (79836, 253190), (86808, 232855), (93142, 217020), (99795, 202552), (101276, 199590), (108510, 186284), (126595, 159672), (133060, 151914), (139713, 144680)]