15128155

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 21823488

約数和(自身を除く): 6695333

約数列:

[1, 5, 7, 31, 35, 73, 155, 191, 217, 365, 511, 955, 1085, 1337, 2263, 2555, 5921, 6685, 11315, 13943, 15841, 29605, 41447, 69715, 79205, 97601, 207235, 432233, 488005, 2161165, 3025631, 15128155]

約数ペア:

[(1, 15128155), (5, 3025631), (7, 2161165), (31, 488005), (35, 432233), (73, 207235), (155, 97601), (191, 79205), (217, 69715), (365, 41447), (511, 29605), (955, 15841), (1085, 13943), (1337, 11315), (2263, 6685), (2555, 5921)]