129312688

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197123}}^1$

素因数の和:197172

約数の個数: 20

約数和(自身を含む): 256655448

約数和(自身を除く): 127342760

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 197123, 394246, 788492, 1576984, 3153968, 8082043, 16164086, 32328172, 64656344, 129312688]

約数ペア:

[(1, 129312688), (2, 64656344), (4, 32328172), (8, 16164086), (16, 8082043), (41, 3153968), (82, 1576984), (164, 788492), (328, 394246), (656, 197123)]