12746686420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{139}}^1\times {\mathrm{2087}}^1$

素因数の和:2274

約数の個数: 96

約数和(自身を含む): 29220307200

約数和(自身を除く): 16473620780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 169, 260, 278, 338, 556, 676, 695, 845, 1390, 1690, 1807, 2087, 2197, 2780, 3380, 3614, 4174, 4394, 7228, 8348, 8788, 9035, 10435, 10985, 18070, 20870, 21970, 23491, 27131, 36140, 41740, 43940, 46982, 54262, 93964, 108524, 117455, 135655, 234910, 271310, 290093, 305383, 352703, 469820, 542620, 580186, 610766, 705406, 1160372, 1221532, 1410812, 1450465, 1526915, 1763515, 2900930, 3053830, 3527030, 3771209, 4585139, 5801860, 6107660, 7054060, 7542418, 9170278, 15084836, 18340556, 18856045, 22925695, 37712090, 45851390, 49025717, 75424180, 91702780, 98051434, 196102868, 245128585, 490257170, 637334321, 980514340, 1274668642, 2549337284, 3186671605, 6373343210, 12746686420]

約数ペア:

[(1, 12746686420), (2, 6373343210), (4, 3186671605), (5, 2549337284), (10, 1274668642), (13, 980514340), (20, 637334321), (26, 490257170), (52, 245128585), (65, 196102868), (130, 98051434), (139, 91702780), (169, 75424180), (260, 49025717), (278, 45851390), (338, 37712090), (556, 22925695), (676, 18856045), (695, 18340556), (845, 15084836), (1390, 9170278), (1690, 7542418), (1807, 7054060), (2087, 6107660), (2197, 5801860), (2780, 4585139), (3380, 3771209), (3614, 3527030), (4174, 3053830), (4394, 2900930), (7228, 1763515), (8348, 1526915), (8788, 1450465), (9035, 1410812), (10435, 1221532), (10985, 1160372), (18070, 705406), (20870, 610766), (21970, 580186), (23491, 542620), (27131, 469820), (36140, 352703), (41740, 305383), (43940, 290093), (46982, 271310), (54262, 234910), (93964, 135655), (108524, 117455)]