661287768

素因数分解:

$2^3\times 3^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1\times {\mathrm{787}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 1673333760

約数和(自身を除く): 1012045992

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 157, 223, 314, 446, 471, 628, 669, 787, 892, 942, 1256, 1338, 1574, 1784, 1884, 2361, 2676, 3148, 3768, 4722, 5352, 6296, 9444, 18888, 35011, 70022, 105033, 123559, 140044, 175501, 210066, 247118, 280088, 351002, 370677, 420132, 494236, 526503, 702004, 741354, 840264, 988472, 1053006, 1404008, 1482708, 2106012, 2965416, 4212024, 27553657, 55107314, 82660971, 110214628, 165321942, 220429256, 330643884, 661287768]

約数ペア:

[(1, 661287768), (2, 330643884), (3, 220429256), (4, 165321942), (6, 110214628), (8, 82660971), (12, 55107314), (24, 27553657), (157, 4212024), (223, 2965416), (314, 2106012), (446, 1482708), (471, 1404008), (628, 1053006), (669, 988472), (787, 840264), (892, 741354), (942, 702004), (1256, 526503), (1338, 494236), (1574, 420132), (1784, 370677), (1884, 351002), (2361, 280088), (2676, 247118), (3148, 210066), (3768, 175501), (4722, 140044), (5352, 123559), (6296, 105033), (9444, 70022), (18888, 35011)]