131276985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 263761920

約数和(自身を除く): 132484935

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 35, 57, 69, 95, 105, 115, 133, 161, 285, 345, 399, 437, 483, 665, 805, 1311, 1995, 2185, 2415, 2861, 3059, 6555, 8583, 9177, 14305, 15295, 20027, 42915, 45885, 54359, 60081, 65803, 100135, 163077, 197409, 271795, 300405, 329015, 380513, 460621, 815385, 987045, 1141539, 1250257, 1381863, 1902565, 2303105, 3750771, 5707695, 6251285, 6909315, 8751799, 18753855, 26255397, 43758995, 131276985]

約数ペア:

[(1, 131276985), (3, 43758995), (5, 26255397), (7, 18753855), (15, 8751799), (19, 6909315), (21, 6251285), (23, 5707695), (35, 3750771), (57, 2303105), (69, 1902565), (95, 1381863), (105, 1250257), (115, 1141539), (133, 987045), (161, 815385), (285, 460621), (345, 380513), (399, 329015), (437, 300405), (483, 271795), (665, 197409), (805, 163077), (1311, 100135), (1995, 65803), (2185, 60081), (2415, 54359), (2861, 45885), (3059, 42915), (6555, 20027), (8583, 15295), (9177, 14305)]