256220923

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 322265088

約数和(自身を除く): 66044165

約数列:

[1, 7, 17, 47, 61, 119, 329, 427, 751, 799, 1037, 2867, 5257, 5593, 7259, 12767, 20069, 35297, 45811, 48739, 89369, 247079, 320677, 341173, 600049, 778787, 2153117, 4200343, 5451509, 15071819, 36602989, 256220923]

約数ペア:

[(1, 256220923), (7, 36602989), (17, 15071819), (47, 5451509), (61, 4200343), (119, 2153117), (329, 778787), (427, 600049), (751, 341173), (799, 320677), (1037, 247079), (2867, 89369), (5257, 48739), (5593, 45811), (7259, 35297), (12767, 20069)]