64440260

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{12251}}^1$

素因数の和:12523

約数の個数: 24

約数和(自身を含む): 135850176

約数和(自身を除く): 71409916

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 12251, 24502, 49004, 61255, 122510, 245020, 3222013, 6444026, 12888052, 16110065, 32220130, 64440260]

約数ペア:

[(1, 64440260), (2, 32220130), (4, 16110065), (5, 12888052), (10, 6444026), (20, 3222013), (263, 245020), (526, 122510), (1052, 61255), (1315, 49004), (2630, 24502), (5260, 12251)]