81830196

素因数分解:

$2^2\times 3^3\times 7^3\times {\mathrm{47}}^2$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 252784000

約数和(自身を除く): 170953804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 47, 49, 54, 63, 84, 94, 98, 108, 126, 141, 147, 188, 189, 196, 252, 282, 294, 329, 343, 378, 423, 441, 564, 588, 658, 686, 756, 846, 882, 987, 1029, 1269, 1316, 1323, 1372, 1692, 1764, 1974, 2058, 2209, 2303, 2538, 2646, 2961, 3087, 3948, 4116, 4418, 4606, 5076, 5292, 5922, 6174, 6627, 6909, 8836, 8883, 9212, 9261, 11844, 12348, 13254, 13818, 15463, 16121, 17766, 18522, 19881, 20727, 26508, 27636, 30926, 32242, 35532, 37044, 39762, 41454, 46389, 48363, 59643, 61852, 62181, 64484, 79524, 82908, 92778, 96726, 108241, 119286, 124362, 139167, 145089, 185556, 193452, 216482, 238572, 248724, 278334, 290178, 324723, 417501, 432964, 435267, 556668, 580356, 649446, 757687, 835002, 870534, 974169, 1298892, 1515374, 1670004, 1741068, 1948338, 2273061, 2922507, 3030748, 3896676, 4546122, 5845014, 6819183, 9092244, 11690028, 13638366, 20457549, 27276732, 40915098, 81830196]

約数ペア:

[(1, 81830196), (2, 40915098), (3, 27276732), (4, 20457549), (6, 13638366), (7, 11690028), (9, 9092244), (12, 6819183), (14, 5845014), (18, 4546122), (21, 3896676), (27, 3030748), (28, 2922507), (36, 2273061), (42, 1948338), (47, 1741068), (49, 1670004), (54, 1515374), (63, 1298892), (84, 974169), (94, 870534), (98, 835002), (108, 757687), (126, 649446), (141, 580356), (147, 556668), (188, 435267), (189, 432964), (196, 417501), (252, 324723), (282, 290178), (294, 278334), (329, 248724), (343, 238572), (378, 216482), (423, 193452), (441, 185556), (564, 145089), (588, 139167), (658, 124362), (686, 119286), (756, 108241), (846, 96726), (882, 92778), (987, 82908), (1029, 79524), (1269, 64484), (1316, 62181), (1323, 61852), (1372, 59643), (1692, 48363), (1764, 46389), (1974, 41454), (2058, 39762), (2209, 37044), (2303, 35532), (2538, 32242), (2646, 30926), (2961, 27636), (3087, 26508), (3948, 20727), (4116, 19881), (4418, 18522), (4606, 17766), (5076, 16121), (5292, 15463), (5922, 13818), (6174, 13254), (6627, 12348), (6909, 11844), (8836, 9261), (8883, 9212)]