257907632

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{25147}}^1$

素因数の和:25796

約数の個数: 20

約数和(自身を含む): 500495496

約数和(自身を除く): 242587864

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2564, 5128, 10256, 25147, 50294, 100588, 201176, 402352, 16119227, 32238454, 64476908, 128953816, 257907632]

約数ペア:

[(1, 257907632), (2, 128953816), (4, 64476908), (8, 32238454), (16, 16119227), (641, 402352), (1282, 201176), (2564, 100588), (5128, 50294), (10256, 25147)]