20385476

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2081}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 37309440

約数和(自身を除く): 16923964

約数列:

[1, 2, 4, 31, 62, 79, 124, 158, 316, 2081, 2449, 4162, 4898, 8324, 9796, 64511, 129022, 164399, 258044, 328798, 657596, 5096369, 10192738, 20385476]

約数ペア:

[(1, 20385476), (2, 10192738), (4, 5096369), (31, 657596), (62, 328798), (79, 258044), (124, 164399), (158, 129022), (316, 64511), (2081, 9796), (2449, 8324), (4162, 4898)]