19900850

素因数分解:

$2^1\times 5^2\times {\mathrm{619}}^1\times {\mathrm{643}}^1$

素因数の和:1274

約数の個数: 24

約数和(自身を含む): 37133040

約数和(自身を除く): 17232190

約数列:

[1, 2, 5, 10, 25, 50, 619, 643, 1238, 1286, 3095, 3215, 6190, 6430, 15475, 16075, 30950, 32150, 398017, 796034, 1990085, 3980170, 9950425, 19900850]

約数ペア:

[(1, 19900850), (2, 9950425), (5, 3980170), (10, 1990085), (25, 796034), (50, 398017), (619, 32150), (643, 30950), (1238, 16075), (1286, 15475), (3095, 6430), (3215, 6190)]