20405386

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 33048000

約数和(自身を除く): 12642614

約数列:

[1, 2, 29, 58, 59, 67, 89, 118, 134, 178, 1711, 1943, 2581, 3422, 3886, 3953, 5162, 5251, 5963, 7906, 10502, 11926, 114637, 152279, 172927, 229274, 304558, 345854, 351817, 703634, 10202693, 20405386]

約数ペア:

[(1, 20405386), (2, 10202693), (29, 703634), (58, 351817), (59, 345854), (67, 304558), (89, 229274), (118, 172927), (134, 152279), (178, 114637), (1711, 11926), (1943, 10502), (2581, 7906), (3422, 5963), (3886, 5251), (3953, 5162)]