87871212

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 265093920

約数和(自身を除く): 177222708

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 101, 117, 132, 143, 156, 169, 198, 202, 234, 286, 303, 338, 396, 404, 429, 468, 507, 572, 606, 676, 858, 909, 1014, 1111, 1212, 1287, 1313, 1521, 1716, 1818, 1859, 2028, 2197, 2222, 2574, 2626, 3042, 3333, 3636, 3718, 3939, 4394, 4444, 5148, 5252, 5577, 6084, 6591, 6666, 7436, 7878, 8788, 9999, 11154, 11817, 13182, 13332, 14443, 15756, 16731, 17069, 19773, 19998, 22308, 23634, 24167, 26364, 28886, 33462, 34138, 39546, 39996, 43329, 47268, 48334, 51207, 57772, 66924, 68276, 72501, 79092, 86658, 96668, 102414, 129987, 145002, 153621, 173316, 187759, 204828, 217503, 221897, 259974, 290004, 307242, 375518, 435006, 443794, 519948, 563277, 614484, 665691, 751036, 870012, 887588, 1126554, 1331382, 1689831, 1997073, 2253108, 2440867, 2662764, 3379662, 3994146, 4881734, 6759324, 7322601, 7988292, 9763468, 14645202, 21967803, 29290404, 43935606, 87871212]

約数ペア:

[(1, 87871212), (2, 43935606), (3, 29290404), (4, 21967803), (6, 14645202), (9, 9763468), (11, 7988292), (12, 7322601), (13, 6759324), (18, 4881734), (22, 3994146), (26, 3379662), (33, 2662764), (36, 2440867), (39, 2253108), (44, 1997073), (52, 1689831), (66, 1331382), (78, 1126554), (99, 887588), (101, 870012), (117, 751036), (132, 665691), (143, 614484), (156, 563277), (169, 519948), (198, 443794), (202, 435006), (234, 375518), (286, 307242), (303, 290004), (338, 259974), (396, 221897), (404, 217503), (429, 204828), (468, 187759), (507, 173316), (572, 153621), (606, 145002), (676, 129987), (858, 102414), (909, 96668), (1014, 86658), (1111, 79092), (1212, 72501), (1287, 68276), (1313, 66924), (1521, 57772), (1716, 51207), (1818, 48334), (1859, 47268), (2028, 43329), (2197, 39996), (2222, 39546), (2574, 34138), (2626, 33462), (3042, 28886), (3333, 26364), (3636, 24167), (3718, 23634), (3939, 22308), (4394, 19998), (4444, 19773), (5148, 17069), (5252, 16731), (5577, 15756), (6084, 14443), (6591, 13332), (6666, 13182), (7436, 11817), (7878, 11154), (8788, 9999)]