15721020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{4159}}^1$

素因数の和:4184

約数の個数: 96

約数和(自身を含む): 55910400

約数和(自身を除く): 40189380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 4159, 8318, 12477, 16636, 20795, 24954, 29113, 37431, 41590, 49908, 58226, 62385, 74862, 83180, 87339, 112293, 116452, 124770, 145565, 149724, 174678, 187155, 224586, 249540, 262017, 291130, 349356, 374310, 436695, 449172, 524034, 561465, 582260, 748620, 786051, 873390, 1048068, 1122930, 1310085, 1572102, 1746780, 2245860, 2620170, 3144204, 3930255, 5240340, 7860510, 15721020]

約数ペア:

[(1, 15721020), (2, 7860510), (3, 5240340), (4, 3930255), (5, 3144204), (6, 2620170), (7, 2245860), (9, 1746780), (10, 1572102), (12, 1310085), (14, 1122930), (15, 1048068), (18, 873390), (20, 786051), (21, 748620), (27, 582260), (28, 561465), (30, 524034), (35, 449172), (36, 436695), (42, 374310), (45, 349356), (54, 291130), (60, 262017), (63, 249540), (70, 224586), (84, 187155), (90, 174678), (105, 149724), (108, 145565), (126, 124770), (135, 116452), (140, 112293), (180, 87339), (189, 83180), (210, 74862), (252, 62385), (270, 58226), (315, 49908), (378, 41590), (420, 37431), (540, 29113), (630, 24954), (756, 20795), (945, 16636), (1260, 12477), (1890, 8318), (3780, 4159)]