178211988

素因数分解:

$2^2\times 3^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 120

約数和(自身を含む): 483969024

約数和(自身を除く): 305757036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 71, 81, 108, 122, 127, 142, 162, 183, 213, 244, 254, 284, 324, 366, 381, 426, 508, 549, 639, 732, 762, 852, 1098, 1143, 1278, 1524, 1647, 1917, 2196, 2286, 2556, 3294, 3429, 3834, 4331, 4572, 4941, 5751, 6588, 6858, 7668, 7747, 8662, 9017, 9882, 10287, 11502, 12993, 13716, 15494, 17324, 18034, 19764, 20574, 23004, 23241, 25986, 27051, 30988, 36068, 38979, 41148, 46482, 51972, 54102, 69723, 77958, 81153, 92964, 108204, 116937, 139446, 155916, 162306, 209169, 233874, 243459, 278892, 324612, 350811, 418338, 467748, 486918, 550037, 627507, 701622, 730377, 836676, 973836, 1100074, 1255014, 1403244, 1460754, 1650111, 2200148, 2510028, 2921508, 3300222, 4950333, 6600444, 9900666, 14850999, 19801332, 29701998, 44552997, 59403996, 89105994, 178211988]

約数ペア:

[(1, 178211988), (2, 89105994), (3, 59403996), (4, 44552997), (6, 29701998), (9, 19801332), (12, 14850999), (18, 9900666), (27, 6600444), (36, 4950333), (54, 3300222), (61, 2921508), (71, 2510028), (81, 2200148), (108, 1650111), (122, 1460754), (127, 1403244), (142, 1255014), (162, 1100074), (183, 973836), (213, 836676), (244, 730377), (254, 701622), (284, 627507), (324, 550037), (366, 486918), (381, 467748), (426, 418338), (508, 350811), (549, 324612), (639, 278892), (732, 243459), (762, 233874), (852, 209169), (1098, 162306), (1143, 155916), (1278, 139446), (1524, 116937), (1647, 108204), (1917, 92964), (2196, 81153), (2286, 77958), (2556, 69723), (3294, 54102), (3429, 51972), (3834, 46482), (4331, 41148), (4572, 38979), (4941, 36068), (5751, 30988), (6588, 27051), (6858, 25986), (7668, 23241), (7747, 23004), (8662, 20574), (9017, 19764), (9882, 18034), (10287, 17324), (11502, 15494), (12993, 13716)]