81580356

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 216

約数和(自身を含む): 258987456

約数和(自身を除く): 177407100

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 23, 26, 33, 36, 39, 44, 46, 52, 53, 66, 69, 78, 92, 99, 106, 117, 132, 138, 143, 156, 159, 169, 198, 207, 212, 234, 253, 276, 286, 299, 318, 338, 396, 414, 429, 468, 477, 506, 507, 572, 583, 598, 636, 676, 689, 759, 828, 858, 897, 954, 1012, 1014, 1166, 1196, 1219, 1287, 1378, 1518, 1521, 1716, 1749, 1794, 1859, 1908, 2028, 2067, 2277, 2332, 2438, 2574, 2691, 2756, 3036, 3042, 3289, 3498, 3588, 3657, 3718, 3887, 4134, 4554, 4876, 5148, 5247, 5382, 5577, 6084, 6201, 6578, 6996, 7314, 7436, 7579, 7774, 8268, 8957, 9108, 9867, 10494, 10764, 10971, 11154, 11661, 12402, 13156, 13409, 14628, 15158, 15548, 15847, 16731, 17914, 19734, 20988, 21942, 22308, 22737, 23322, 24804, 26818, 26871, 29601, 30316, 31694, 33462, 34983, 35828, 39468, 40227, 42757, 43884, 45474, 46644, 47541, 53636, 53742, 59202, 63388, 66924, 68211, 69966, 80454, 80613, 85514, 90948, 95082, 98527, 107484, 118404, 120681, 128271, 136422, 139932, 142623, 160908, 161226, 171028, 174317, 190164, 197054, 206011, 241362, 256542, 272844, 285246, 295581, 322452, 348634, 384813, 394108, 412022, 482724, 513084, 522951, 570492, 591162, 618033, 697268, 769626, 824044, 886743, 1045902, 1182324, 1236066, 1539252, 1568853, 1773486, 1854099, 2091804, 2266121, 2472132, 3137706, 3546972, 3708198, 4532242, 6275412, 6798363, 7416396, 9064484, 13596726, 20395089, 27193452, 40790178, 81580356]

約数ペア:

[(1, 81580356), (2, 40790178), (3, 27193452), (4, 20395089), (6, 13596726), (9, 9064484), (11, 7416396), (12, 6798363), (13, 6275412), (18, 4532242), (22, 3708198), (23, 3546972), (26, 3137706), (33, 2472132), (36, 2266121), (39, 2091804), (44, 1854099), (46, 1773486), (52, 1568853), (53, 1539252), (66, 1236066), (69, 1182324), (78, 1045902), (92, 886743), (99, 824044), (106, 769626), (117, 697268), (132, 618033), (138, 591162), (143, 570492), (156, 522951), (159, 513084), (169, 482724), (198, 412022), (207, 394108), (212, 384813), (234, 348634), (253, 322452), (276, 295581), (286, 285246), (299, 272844), (318, 256542), (338, 241362), (396, 206011), (414, 197054), (429, 190164), (468, 174317), (477, 171028), (506, 161226), (507, 160908), (572, 142623), (583, 139932), (598, 136422), (636, 128271), (676, 120681), (689, 118404), (759, 107484), (828, 98527), (858, 95082), (897, 90948), (954, 85514), (1012, 80613), (1014, 80454), (1166, 69966), (1196, 68211), (1219, 66924), (1287, 63388), (1378, 59202), (1518, 53742), (1521, 53636), (1716, 47541), (1749, 46644), (1794, 45474), (1859, 43884), (1908, 42757), (2028, 40227), (2067, 39468), (2277, 35828), (2332, 34983), (2438, 33462), (2574, 31694), (2691, 30316), (2756, 29601), (3036, 26871), (3042, 26818), (3289, 24804), (3498, 23322), (3588, 22737), (3657, 22308), (3718, 21942), (3887, 20988), (4134, 19734), (4554, 17914), (4876, 16731), (5148, 15847), (5247, 15548), (5382, 15158), (5577, 14628), (6084, 13409), (6201, 13156), (6578, 12402), (6996, 11661), (7314, 11154), (7436, 10971), (7579, 10764), (7774, 10494), (8268, 9867), (8957, 9108)]