18888885890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4027481}}^1$

素因数の和:4027562

約数の個数: 32

約数和(自身を含む): 39437103744

約数和(自身を除く): 20548217854

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4690, 4027481, 8054962, 20137405, 28192367, 40274810, 56384734, 140961835, 269841227, 281923670, 539682454, 1349206135, 1888888589, 2698412270, 3777777178, 9444442945, 18888885890]

約数ペア:

[(1, 18888885890), (2, 9444442945), (5, 3777777178), (7, 2698412270), (10, 1888888589), (14, 1349206135), (35, 539682454), (67, 281923670), (70, 269841227), (134, 140961835), (335, 56384734), (469, 40274810), (670, 28192367), (938, 20137405), (2345, 8054962), (4690, 4027481)]