28711620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22787}}^1$

素因数の和:22809

約数の個数: 72

約数和(自身を含む): 99537984

約数和(自身を除く): 70826364

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, 22787, 45574, 68361, 91148, 113935, 136722, 159509, 205083, 227870, 273444, 319018, 341805, 410166, 455740, 478527, 638036, 683610, 797545, 820332, 957054, 1025415, 1367220, 1435581, 1595090, 1914108, 2050830, 2392635, 2871162, 3190180, 4101660, 4785270, 5742324, 7177905, 9570540, 14355810, 28711620]

約数ペア:

[(1, 28711620), (2, 14355810), (3, 9570540), (4, 7177905), (5, 5742324), (6, 4785270), (7, 4101660), (9, 3190180), (10, 2871162), (12, 2392635), (14, 2050830), (15, 1914108), (18, 1595090), (20, 1435581), (21, 1367220), (28, 1025415), (30, 957054), (35, 820332), (36, 797545), (42, 683610), (45, 638036), (60, 478527), (63, 455740), (70, 410166), (84, 341805), (90, 319018), (105, 273444), (126, 227870), (140, 205083), (180, 159509), (210, 136722), (252, 113935), (315, 91148), (420, 68361), (630, 45574), (1260, 22787)]