278840394805

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1\times {\mathrm{12713}}^1$

素因数の和:13126

約数の個数: 64

約数和(自身を含む): 409165406208

約数和(自身を除く): 130325011403

約数列:

[1, 5, 7, 17, 35, 85, 119, 191, 193, 595, 955, 965, 1337, 1351, 3247, 3281, 6685, 6755, 12713, 16235, 16405, 22729, 22967, 36863, 63565, 88991, 113645, 114835, 184315, 216121, 258041, 444955, 626671, 1080605, 1290205, 1512847, 2428183, 2453609, 3133355, 4386697, 7564235, 12140915, 12268045, 16997281, 17175263, 21933485, 41279111, 41711353, 84986405, 85876315, 206395555, 208556765, 288953777, 291979471, 468639319, 1444768885, 1459897355, 2343196595, 3280475233, 7966868423, 16402376165, 39834342115, 55768078961, 278840394805]

約数ペア:

[(1, 278840394805), (5, 55768078961), (7, 39834342115), (17, 16402376165), (35, 7966868423), (85, 3280475233), (119, 2343196595), (191, 1459897355), (193, 1444768885), (595, 468639319), (955, 291979471), (965, 288953777), (1337, 208556765), (1351, 206395555), (3247, 85876315), (3281, 84986405), (6685, 41711353), (6755, 41279111), (12713, 21933485), (16235, 17175263), (16405, 16997281), (22729, 12268045), (22967, 12140915), (36863, 7564235), (63565, 4386697), (88991, 3133355), (113645, 2453609), (114835, 2428183), (184315, 1512847), (216121, 1290205), (258041, 1080605), (444955, 626671)]