19496173820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8943199}}^1$

素因数の和:8943317

約数の個数: 24

約数和(自身を含む): 41317584000

約数和(自身を除く): 21821410180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8943199, 17886398, 35772796, 44715995, 89431990, 178863980, 974808691, 1949617382, 3899234764, 4874043455, 9748086910, 19496173820]

約数ペア:

[(1, 19496173820), (2, 9748086910), (4, 4874043455), (5, 3899234764), (10, 1949617382), (20, 974808691), (109, 178863980), (218, 89431990), (436, 44715995), (545, 35772796), (1090, 17886398), (2180, 8943199)]