249235540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{655883}}^1$

素因数の和:655911

約数の個数: 24

約数和(自身を含む): 550942560

約数和(自身を除く): 301707020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 655883, 1311766, 2623532, 3279415, 6558830, 12461777, 13117660, 24923554, 49847108, 62308885, 124617770, 249235540]

約数ペア:

[(1, 249235540), (2, 124617770), (4, 62308885), (5, 49847108), (10, 24923554), (19, 13117660), (20, 12461777), (38, 6558830), (76, 3279415), (95, 2623532), (190, 1311766), (380, 655883)]