51451890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{499}}^1$

素因数の和:1007

約数の個数: 64

約数和(自身を含む): 141696000

約数和(自身を除く): 90244110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 491, 499, 982, 998, 1473, 1497, 2455, 2495, 2946, 2994, 3437, 3493, 4910, 4990, 6874, 6986, 7365, 7485, 10311, 10479, 14730, 14970, 17185, 17465, 20622, 20958, 34370, 34930, 51555, 52395, 103110, 104790, 245009, 490018, 735027, 1225045, 1470054, 1715063, 2450090, 3430126, 3675135, 5145189, 7350270, 8575315, 10290378, 17150630, 25725945, 51451890]

約数ペア:

[(1, 51451890), (2, 25725945), (3, 17150630), (5, 10290378), (6, 8575315), (7, 7350270), (10, 5145189), (14, 3675135), (15, 3430126), (21, 2450090), (30, 1715063), (35, 1470054), (42, 1225045), (70, 735027), (105, 490018), (210, 245009), (491, 104790), (499, 103110), (982, 52395), (998, 51555), (1473, 34930), (1497, 34370), (2455, 20958), (2495, 20622), (2946, 17465), (2994, 17185), (3437, 14970), (3493, 14730), (4910, 10479), (4990, 10311), (6874, 7485), (6986, 7365)]