20996868420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{71171}}^1$

素因数の和:71346

約数の個数: 144

約数和(自身を含む): 69947841600

約数和(自身を除く): 48950973180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 149, 165, 180, 198, 220, 298, 330, 396, 447, 495, 596, 660, 745, 894, 990, 1341, 1490, 1639, 1788, 1980, 2235, 2682, 2980, 3278, 4470, 4917, 5364, 6556, 6705, 8195, 8940, 9834, 13410, 14751, 16390, 19668, 24585, 26820, 29502, 32780, 49170, 59004, 71171, 73755, 98340, 142342, 147510, 213513, 284684, 295020, 355855, 427026, 640539, 711710, 782881, 854052, 1067565, 1281078, 1423420, 1565762, 2135130, 2348643, 2562156, 3131524, 3202695, 3914405, 4270260, 4697286, 6405390, 7045929, 7828810, 9394572, 10604479, 11743215, 12810780, 14091858, 15657620, 21208958, 23486430, 28183716, 31813437, 35229645, 42417916, 46972860, 53022395, 63626874, 70459290, 95440311, 106044790, 116649269, 127253748, 140918580, 159067185, 190880622, 212089580, 233298538, 318134370, 349947807, 381761244, 466597076, 477201555, 583246345, 636268740, 699895614, 954403110, 1049843421, 1166492690, 1399791228, 1749739035, 1908806220, 2099686842, 2332985380, 3499478070, 4199373684, 5249217105, 6998956140, 10498434210, 20996868420]

約数ペア:

[(1, 20996868420), (2, 10498434210), (3, 6998956140), (4, 5249217105), (5, 4199373684), (6, 3499478070), (9, 2332985380), (10, 2099686842), (11, 1908806220), (12, 1749739035), (15, 1399791228), (18, 1166492690), (20, 1049843421), (22, 954403110), (30, 699895614), (33, 636268740), (36, 583246345), (44, 477201555), (45, 466597076), (55, 381761244), (60, 349947807), (66, 318134370), (90, 233298538), (99, 212089580), (110, 190880622), (132, 159067185), (149, 140918580), (165, 127253748), (180, 116649269), (198, 106044790), (220, 95440311), (298, 70459290), (330, 63626874), (396, 53022395), (447, 46972860), (495, 42417916), (596, 35229645), (660, 31813437), (745, 28183716), (894, 23486430), (990, 21208958), (1341, 15657620), (1490, 14091858), (1639, 12810780), (1788, 11743215), (1980, 10604479), (2235, 9394572), (2682, 7828810), (2980, 7045929), (3278, 6405390), (4470, 4697286), (4917, 4270260), (5364, 3914405), (6556, 3202695), (6705, 3131524), (8195, 2562156), (8940, 2348643), (9834, 2135130), (13410, 1565762), (14751, 1423420), (16390, 1281078), (19668, 1067565), (24585, 854052), (26820, 782881), (29502, 711710), (32780, 640539), (49170, 427026), (59004, 355855), (71171, 295020), (73755, 284684), (98340, 213513), (142342, 147510)]