389780344

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{5009}}^1$

素因数の和:5223

約数の個数: 32

約数和(自身を含む): 746690400

約数和(自身を除く): 356910056

約数列:

[1, 2, 4, 8, 71, 137, 142, 274, 284, 548, 568, 1096, 5009, 9727, 10018, 19454, 20036, 38908, 40072, 77816, 355639, 686233, 711278, 1372466, 1422556, 2744932, 2845112, 5489864, 48722543, 97445086, 194890172, 389780344]

約数ペア:

[(1, 389780344), (2, 194890172), (4, 97445086), (8, 48722543), (71, 5489864), (137, 2845112), (142, 2744932), (274, 1422556), (284, 1372466), (548, 711278), (568, 686233), (1096, 355639), (5009, 77816), (9727, 40072), (10018, 38908), (19454, 20036)]