18780810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1487}}^1$

素因数の和:1918

約数の個数: 32

約数和(自身を含む): 45211392

約数和(自身を除く): 26430582

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 421, 842, 1263, 1487, 2105, 2526, 2974, 4210, 4461, 6315, 7435, 8922, 12630, 14870, 22305, 44610, 626027, 1252054, 1878081, 3130135, 3756162, 6260270, 9390405, 18780810]

約数ペア:

[(1, 18780810), (2, 9390405), (3, 6260270), (5, 3756162), (6, 3130135), (10, 1878081), (15, 1252054), (30, 626027), (421, 44610), (842, 22305), (1263, 14870), (1487, 12630), (2105, 8922), (2526, 7435), (2974, 6315), (4210, 4461)]