20764742404

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{139}}^2\times {\mathrm{293}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 42293579328

約数和(自身を除く): 21528836924

約数列:

[1, 2, 4, 7, 14, 28, 131, 139, 262, 278, 293, 524, 556, 586, 917, 973, 1172, 1834, 1946, 2051, 3668, 3892, 4102, 8204, 18209, 19321, 36418, 38383, 38642, 40727, 72836, 76766, 77284, 81454, 127463, 135247, 153532, 162908, 254926, 268681, 270494, 285089, 509852, 537362, 540988, 570178, 1074724, 1140356, 2531051, 5062102, 5335237, 5661053, 10124204, 10670474, 11322106, 17717357, 21340948, 22644212, 35434714, 37346659, 39627371, 70869428, 74693318, 79254742, 149386636, 158509484, 741597943, 1483195886, 2966391772, 5191185601, 10382371202, 20764742404]

約数ペア:

[(1, 20764742404), (2, 10382371202), (4, 5191185601), (7, 2966391772), (14, 1483195886), (28, 741597943), (131, 158509484), (139, 149386636), (262, 79254742), (278, 74693318), (293, 70869428), (524, 39627371), (556, 37346659), (586, 35434714), (917, 22644212), (973, 21340948), (1172, 17717357), (1834, 11322106), (1946, 10670474), (2051, 10124204), (3668, 5661053), (3892, 5335237), (4102, 5062102), (8204, 2531051), (18209, 1140356), (19321, 1074724), (36418, 570178), (38383, 540988), (38642, 537362), (40727, 509852), (72836, 285089), (76766, 270494), (77284, 268681), (81454, 254926), (127463, 162908), (135247, 153532)]