387777980

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{35839}}^1$

素因数の和:36389

約数の個数: 24

約数和(自身を含む): 815861760

約数和(自身を除く): 428083780

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 35839, 71678, 143356, 179195, 358390, 716780, 19388899, 38777798, 77555596, 96944495, 193888990, 387777980]

約数ペア:

[(1, 387777980), (2, 193888990), (4, 96944495), (5, 77555596), (10, 38777798), (20, 19388899), (541, 716780), (1082, 358390), (2164, 179195), (2705, 143356), (5410, 71678), (10820, 35839)]