287338020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 819624960

約数和(自身を除く): 532286940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 139, 262, 263, 278, 393, 417, 524, 526, 556, 655, 695, 786, 789, 834, 1052, 1310, 1315, 1390, 1572, 1578, 1668, 1965, 2085, 2620, 2630, 2780, 3156, 3930, 3945, 4170, 5260, 7860, 7890, 8340, 15780, 18209, 34453, 36418, 36557, 54627, 68906, 72836, 73114, 91045, 103359, 109254, 109671, 137812, 146228, 172265, 182090, 182785, 206718, 218508, 219342, 273135, 344530, 364180, 365570, 413436, 438684, 516795, 546270, 548355, 689060, 731140, 1033590, 1092540, 1096710, 2067180, 2193420, 4788967, 9577934, 14366901, 19155868, 23944835, 28733802, 47889670, 57467604, 71834505, 95779340, 143669010, 287338020]

約数ペア:

[(1, 287338020), (2, 143669010), (3, 95779340), (4, 71834505), (5, 57467604), (6, 47889670), (10, 28733802), (12, 23944835), (15, 19155868), (20, 14366901), (30, 9577934), (60, 4788967), (131, 2193420), (139, 2067180), (262, 1096710), (263, 1092540), (278, 1033590), (393, 731140), (417, 689060), (524, 548355), (526, 546270), (556, 516795), (655, 438684), (695, 413436), (786, 365570), (789, 364180), (834, 344530), (1052, 273135), (1310, 219342), (1315, 218508), (1390, 206718), (1572, 182785), (1578, 182090), (1668, 172265), (1965, 146228), (2085, 137812), (2620, 109671), (2630, 109254), (2780, 103359), (3156, 91045), (3930, 73114), (3945, 72836), (4170, 68906), (5260, 54627), (7860, 36557), (7890, 36418), (8340, 34453), (15780, 18209)]