20725830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{547}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 54113904

約数和(自身を除く): 33388074

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 421, 547, 842, 1094, 1263, 1641, 2105, 2526, 2735, 3282, 3789, 4210, 4923, 5470, 6315, 7578, 8205, 9846, 12630, 16410, 18945, 24615, 37890, 49230, 230287, 460574, 690861, 1151435, 1381722, 2072583, 2302870, 3454305, 4145166, 6908610, 10362915, 20725830]

約数ペア:

[(1, 20725830), (2, 10362915), (3, 6908610), (5, 4145166), (6, 3454305), (9, 2302870), (10, 2072583), (15, 1381722), (18, 1151435), (30, 690861), (45, 460574), (90, 230287), (421, 49230), (547, 37890), (842, 24615), (1094, 18945), (1263, 16410), (1641, 12630), (2105, 9846), (2526, 8205), (2735, 7578), (3282, 6315), (3789, 5470), (4210, 4923)]