20118780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1129}}^1$

素因数の和:1161

約数の個数: 120

約数和(自身を含む): 68911920

約数和(自身を除く): 48793140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1129, 1188, 1485, 1620, 1782, 1980, 2258, 2970, 3387, 3564, 4455, 4516, 5645, 5940, 6774, 8910, 10161, 11290, 12419, 13548, 16935, 17820, 20322, 22580, 24838, 30483, 33870, 37257, 40644, 49676, 50805, 60966, 62095, 67740, 74514, 91449, 101610, 111771, 121932, 124190, 149028, 152415, 182898, 186285, 203220, 223542, 248380, 304830, 335313, 365796, 372570, 447084, 457245, 558855, 609660, 670626, 745140, 914490, 1005939, 1117710, 1341252, 1676565, 1828980, 2011878, 2235420, 3353130, 4023756, 5029695, 6706260, 10059390, 20118780]

約数ペア:

[(1, 20118780), (2, 10059390), (3, 6706260), (4, 5029695), (5, 4023756), (6, 3353130), (9, 2235420), (10, 2011878), (11, 1828980), (12, 1676565), (15, 1341252), (18, 1117710), (20, 1005939), (22, 914490), (27, 745140), (30, 670626), (33, 609660), (36, 558855), (44, 457245), (45, 447084), (54, 372570), (55, 365796), (60, 335313), (66, 304830), (81, 248380), (90, 223542), (99, 203220), (108, 186285), (110, 182898), (132, 152415), (135, 149028), (162, 124190), (165, 121932), (180, 111771), (198, 101610), (220, 91449), (270, 74514), (297, 67740), (324, 62095), (330, 60966), (396, 50805), (405, 49676), (495, 40644), (540, 37257), (594, 33870), (660, 30483), (810, 24838), (891, 22580), (990, 20322), (1129, 17820), (1188, 16935), (1485, 13548), (1620, 12419), (1782, 11290), (1980, 10161), (2258, 8910), (2970, 6774), (3387, 5940), (3564, 5645), (4455, 4516)]