199520920

素因数分解:

$2^3\times 5^1\times {\mathrm{4988023}}^1$

素因数の和:4988034

約数の個数: 16

約数和(自身を含む): 448922160

約数和(自身を除く): 249401240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4988023, 9976046, 19952092, 24940115, 39904184, 49880230, 99760460, 199520920]

約数ペア:

[(1, 199520920), (2, 99760460), (4, 49880230), (5, 39904184), (8, 24940115), (10, 19952092), (20, 9976046), (40, 4988023)]