280121612

素因数分解:

$2^2\times {\mathrm{397}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:1241

約数の個数: 24

約数和(自身を含む): 493790640

約数和(自身を除く): 213669028

約数列:

[1, 2, 4, 397, 419, 421, 794, 838, 842, 1588, 1676, 1684, 166343, 167137, 176399, 332686, 334274, 352798, 665372, 668548, 705596, 70030403, 140060806, 280121612]

約数ペア:

[(1, 280121612), (2, 140060806), (4, 70030403), (397, 705596), (419, 668548), (421, 665372), (794, 352798), (838, 334274), (842, 332686), (1588, 176399), (1676, 167137), (1684, 166343)]