199945090

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{28201}}^1$

素因数の和:28917

約数の個数: 16

約数和(自身を含む): 360421560

約数和(自身を除く): 160476470

約数列:

[1, 2, 5, 10, 709, 1418, 3545, 7090, 28201, 56402, 141005, 282010, 19994509, 39989018, 99972545, 199945090]

約数ペア:

[(1, 199945090), (2, 99972545), (5, 39989018), (10, 19994509), (709, 282010), (1418, 141005), (3545, 56402), (7090, 28201)]