2550020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 5963328

約数和(自身を除く): 3413308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 173, 220, 268, 335, 346, 670, 692, 737, 865, 1340, 1474, 1730, 1903, 2948, 3460, 3685, 3806, 7370, 7612, 9515, 11591, 14740, 19030, 23182, 38060, 46364, 57955, 115910, 127501, 231820, 255002, 510004, 637505, 1275010, 2550020]

約数ペア:

[(1, 2550020), (2, 1275010), (4, 637505), (5, 510004), (10, 255002), (11, 231820), (20, 127501), (22, 115910), (44, 57955), (55, 46364), (67, 38060), (110, 23182), (134, 19030), (173, 14740), (220, 11591), (268, 9515), (335, 7612), (346, 7370), (670, 3806), (692, 3685), (737, 3460), (865, 2948), (1340, 1903), (1474, 1730)]