206979880

素因数分解:

$2^3\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{4877}}^1$

素因数の和:5949

約数の個数: 32

約数和(自身を含む): 466239240

約数和(自身を除く): 259259360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1061, 2122, 4244, 4877, 5305, 8488, 9754, 10610, 19508, 21220, 24385, 39016, 42440, 48770, 97540, 195080, 5174497, 10348994, 20697988, 25872485, 41395976, 51744970, 103489940, 206979880]

約数ペア:

[(1, 206979880), (2, 103489940), (4, 51744970), (5, 41395976), (8, 25872485), (10, 20697988), (20, 10348994), (40, 5174497), (1061, 195080), (2122, 97540), (4244, 48770), (4877, 42440), (5305, 39016), (8488, 24385), (9754, 21220), (10610, 19508)]