87951760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4451}}^1$

素因数の和:4496

約数の個数: 80

約数和(自身を含む): 231860160

約数和(自身を除く): 143908400

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, 3952, 4451, 4940, 8902, 9880, 17804, 19760, 22255, 35608, 44510, 57863, 71216, 84569, 89020, 115726, 169138, 178040, 231452, 289315, 338276, 356080, 422845, 462904, 578630, 676552, 845690, 925808, 1099397, 1157260, 1353104, 1691380, 2198794, 2314520, 3382760, 4397588, 4629040, 5496985, 6765520, 8795176, 10993970, 17590352, 21987940, 43975880, 87951760]

約数ペア:

[(1, 87951760), (2, 43975880), (4, 21987940), (5, 17590352), (8, 10993970), (10, 8795176), (13, 6765520), (16, 5496985), (19, 4629040), (20, 4397588), (26, 3382760), (38, 2314520), (40, 2198794), (52, 1691380), (65, 1353104), (76, 1157260), (80, 1099397), (95, 925808), (104, 845690), (130, 676552), (152, 578630), (190, 462904), (208, 422845), (247, 356080), (260, 338276), (304, 289315), (380, 231452), (494, 178040), (520, 169138), (760, 115726), (988, 89020), (1040, 84569), (1235, 71216), (1520, 57863), (1976, 44510), (2470, 35608), (3952, 22255), (4451, 19760), (4940, 17804), (8902, 9880)]