20996949925

素因数分解:

$5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{733}}^1\times {\mathrm{857}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 29987223552

約数和(自身を除く): 8990273627

約数列:

[1, 5, 7, 25, 35, 175, 191, 733, 857, 955, 1337, 3665, 4285, 4775, 5131, 5999, 6685, 18325, 21425, 25655, 29995, 33425, 128275, 140003, 149975, 163687, 628181, 700015, 818435, 980021, 1145809, 3140905, 3500075, 4092175, 4397267, 4900105, 5729045, 15704525, 21986335, 24500525, 28645225, 109931675, 119982571, 599912855, 839877997, 2999564275, 4199389985, 20996949925]

約数ペア:

[(1, 20996949925), (5, 4199389985), (7, 2999564275), (25, 839877997), (35, 599912855), (175, 119982571), (191, 109931675), (733, 28645225), (857, 24500525), (955, 21986335), (1337, 15704525), (3665, 5729045), (4285, 4900105), (4775, 4397267), (5131, 4092175), (5999, 3500075), (6685, 3140905), (18325, 1145809), (21425, 980021), (25655, 818435), (29995, 700015), (33425, 628181), (128275, 163687), (140003, 149975)]