1291215420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1549}}^1$

素因数の和:1996

約数の個数: 144

約数和(自身を含む): 4285663200

約数和(自身を除く): 2994447780

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, 165, 180, 198, 220, 330, 396, 421, 495, 660, 842, 990, 1263, 1549, 1684, 1980, 2105, 2526, 3098, 3789, 4210, 4631, 4647, 5052, 6196, 6315, 7578, 7745, 8420, 9262, 9294, 12630, 13893, 13941, 15156, 15490, 17039, 18524, 18588, 18945, 23155, 23235, 25260, 27786, 27882, 30980, 34078, 37890, 41679, 46310, 46470, 51117, 55572, 55764, 68156, 69465, 69705, 75780, 83358, 85195, 92620, 92940, 102234, 138930, 139410, 153351, 166716, 170390, 204468, 208395, 255585, 277860, 278820, 306702, 340780, 416790, 511170, 613404, 652129, 766755, 833580, 1022340, 1304258, 1533510, 1956387, 2608516, 3067020, 3260645, 3912774, 5869161, 6521290, 7173419, 7825548, 9781935, 11738322, 13042580, 14346838, 19563870, 21520257, 23476644, 28693676, 29345805, 35867095, 39127740, 43040514, 58691610, 64560771, 71734190, 86081028, 107601285, 117383220, 129121542, 143468380, 215202570, 258243084, 322803855, 430405140, 645607710, 1291215420]

約数ペア:

[(1, 1291215420), (2, 645607710), (3, 430405140), (4, 322803855), (5, 258243084), (6, 215202570), (9, 143468380), (10, 129121542), (11, 117383220), (12, 107601285), (15, 86081028), (18, 71734190), (20, 64560771), (22, 58691610), (30, 43040514), (33, 39127740), (36, 35867095), (44, 29345805), (45, 28693676), (55, 23476644), (60, 21520257), (66, 19563870), (90, 14346838), (99, 13042580), (110, 11738322), (132, 9781935), (165, 7825548), (180, 7173419), (198, 6521290), (220, 5869161), (330, 3912774), (396, 3260645), (421, 3067020), (495, 2608516), (660, 1956387), (842, 1533510), (990, 1304258), (1263, 1022340), (1549, 833580), (1684, 766755), (1980, 652129), (2105, 613404), (2526, 511170), (3098, 416790), (3789, 340780), (4210, 306702), (4631, 278820), (4647, 277860), (5052, 255585), (6196, 208395), (6315, 204468), (7578, 170390), (7745, 166716), (8420, 153351), (9262, 139410), (9294, 138930), (12630, 102234), (13893, 92940), (13941, 92620), (15156, 85195), (15490, 83358), (17039, 75780), (18524, 69705), (18588, 69465), (18945, 68156), (23155, 55764), (23235, 55572), (25260, 51117), (27786, 46470), (27882, 46310), (30980, 41679), (34078, 37890)]