64867550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2081

約数の個数: 48

約数和(自身を含む): 133920000

約数和(自身を除く): 69052450

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 59, 110, 118, 275, 295, 550, 590, 649, 1298, 1475, 1999, 2950, 3245, 3998, 6490, 9995, 16225, 19990, 21989, 32450, 43978, 49975, 99950, 109945, 117941, 219890, 235882, 549725, 589705, 1099450, 1179410, 1297351, 2594702, 2948525, 5897050, 6486755, 12973510, 32433775, 64867550]

約数ペア:

[(1, 64867550), (2, 32433775), (5, 12973510), (10, 6486755), (11, 5897050), (22, 2948525), (25, 2594702), (50, 1297351), (55, 1179410), (59, 1099450), (110, 589705), (118, 549725), (275, 235882), (295, 219890), (550, 117941), (590, 109945), (649, 99950), (1298, 49975), (1475, 43978), (1999, 32450), (2950, 21989), (3245, 19990), (3998, 16225), (6490, 9995)]