7647780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 24837120

約数和(自身を除く): 17189340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 131, 139, 140, 210, 262, 278, 393, 417, 420, 524, 556, 655, 695, 786, 834, 917, 973, 1310, 1390, 1572, 1668, 1834, 1946, 1965, 2085, 2620, 2751, 2780, 2919, 3668, 3892, 3930, 4170, 4585, 4865, 5502, 5838, 7860, 8340, 9170, 9730, 11004, 11676, 13755, 14595, 18209, 18340, 19460, 27510, 29190, 36418, 54627, 55020, 58380, 72836, 91045, 109254, 127463, 182090, 218508, 254926, 273135, 364180, 382389, 509852, 546270, 637315, 764778, 1092540, 1274630, 1529556, 1911945, 2549260, 3823890, 7647780]

約数ペア:

[(1, 7647780), (2, 3823890), (3, 2549260), (4, 1911945), (5, 1529556), (6, 1274630), (7, 1092540), (10, 764778), (12, 637315), (14, 546270), (15, 509852), (20, 382389), (21, 364180), (28, 273135), (30, 254926), (35, 218508), (42, 182090), (60, 127463), (70, 109254), (84, 91045), (105, 72836), (131, 58380), (139, 55020), (140, 54627), (210, 36418), (262, 29190), (278, 27510), (393, 19460), (417, 18340), (420, 18209), (524, 14595), (556, 13755), (655, 11676), (695, 11004), (786, 9730), (834, 9170), (917, 8340), (973, 7860), (1310, 5838), (1390, 5502), (1572, 4865), (1668, 4585), (1834, 4170), (1946, 3930), (1965, 3892), (2085, 3668), (2620, 2919), (2751, 2780)]