77992720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3947}}^1$

素因数の和:3992

約数の個数: 80

約数和(自身を含む): 205611840

約数和(自身を除く): 127619120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3947, 3952, 4940, 7894, 9880, 15788, 19735, 19760, 31576, 39470, 51311, 63152, 74993, 78940, 102622, 149986, 157880, 205244, 256555, 299972, 315760, 374965, 410488, 513110, 599944, 749930, 820976, 974909, 1026220, 1199888, 1499860, 1949818, 2052440, 2999720, 3899636, 4104880, 4874545, 5999440, 7799272, 9749090, 15598544, 19498180, 38996360, 77992720]

約数ペア:

[(1, 77992720), (2, 38996360), (4, 19498180), (5, 15598544), (8, 9749090), (10, 7799272), (13, 5999440), (16, 4874545), (19, 4104880), (20, 3899636), (26, 2999720), (38, 2052440), (40, 1949818), (52, 1499860), (65, 1199888), (76, 1026220), (80, 974909), (95, 820976), (104, 749930), (130, 599944), (152, 513110), (190, 410488), (208, 374965), (247, 315760), (260, 299972), (304, 256555), (380, 205244), (494, 157880), (520, 149986), (760, 102622), (988, 78940), (1040, 74993), (1235, 63152), (1520, 51311), (1976, 39470), (2470, 31576), (3947, 19760), (3952, 19735), (4940, 15788), (7894, 9880)]