205887780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{163403}}^1$

素因数の和:163425

約数の個数: 72

約数和(自身を含む): 713748672

約数和(自身を除く): 507860892

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 163403, 326806, 490209, 653612, 817015, 980418, 1143821, 1470627, 1634030, 1960836, 2287642, 2451045, 2941254, 3268060, 3431463, 4575284, 4902090, 5719105, 5882508, 6862926, 7353135, 9804180, 10294389, 11438210, 13725852, 14706270, 17157315, 20588778, 22876420, 29412540, 34314630, 41177556, 51471945, 68629260, 102943890, 205887780]

約数ペア:

[(1, 205887780), (2, 102943890), (3, 68629260), (4, 51471945), (5, 41177556), (6, 34314630), (7, 29412540), (9, 22876420), (10, 20588778), (12, 17157315), (14, 14706270), (15, 13725852), (18, 11438210), (20, 10294389), (21, 9804180), (28, 7353135), (30, 6862926), (35, 5882508), (36, 5719105), (42, 4902090), (45, 4575284), (60, 3431463), (63, 3268060), (70, 2941254), (84, 2451045), (90, 2287642), (105, 1960836), (126, 1634030), (140, 1470627), (180, 1143821), (210, 980418), (252, 817015), (315, 653612), (420, 490209), (630, 326806), (1260, 163403)]