201009980

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{39107}}^1$

素因数の和:39373

約数の個数: 24

約数和(自身を含む): 423774288

約数和(自身を除く): 222764308

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 39107, 78214, 156428, 195535, 391070, 782140, 10050499, 20100998, 40201996, 50252495, 100504990, 201009980]

約数ペア:

[(1, 201009980), (2, 100504990), (4, 50252495), (5, 40201996), (10, 20100998), (20, 10050499), (257, 782140), (514, 391070), (1028, 195535), (1285, 156428), (2570, 78214), (5140, 39107)]