85216520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3617}}^1$

素因数の和:3678

約数の個数: 64

約数和(自身を含む): 208396800

約数和(自身を除く): 123180280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 3617, 4712, 5890, 7234, 11780, 14468, 18085, 23560, 28936, 36170, 68723, 72340, 112127, 137446, 144680, 224254, 274892, 343615, 448508, 549784, 560635, 687230, 897016, 1121270, 1374460, 2130413, 2242540, 2748920, 4260826, 4485080, 8521652, 10652065, 17043304, 21304130, 42608260, 85216520]

約数ペア:

[(1, 85216520), (2, 42608260), (4, 21304130), (5, 17043304), (8, 10652065), (10, 8521652), (19, 4485080), (20, 4260826), (31, 2748920), (38, 2242540), (40, 2130413), (62, 1374460), (76, 1121270), (95, 897016), (124, 687230), (152, 560635), (155, 549784), (190, 448508), (248, 343615), (310, 274892), (380, 224254), (589, 144680), (620, 137446), (760, 112127), (1178, 72340), (1240, 68723), (2356, 36170), (2945, 28936), (3617, 23560), (4712, 18085), (5890, 14468), (7234, 11780)]