20133965

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 24748416

約数和(自身を除く): 4614451

約数列:

[1, 5, 61, 251, 263, 305, 1255, 1315, 15311, 16043, 66013, 76555, 80215, 330065, 4026793, 20133965]

約数ペア:

[(1, 20133965), (5, 4026793), (61, 330065), (251, 80215), (263, 76555), (305, 66013), (1255, 16043), (1315, 15311)]