245786140

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{55109}}^1$

素因数の和:55341

約数の個数: 24

約数和(自身を含む): 518474880

約数和(自身を除く): 272688740

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 55109, 110218, 220436, 275545, 551090, 1102180, 12289307, 24578614, 49157228, 61446535, 122893070, 245786140]

約数ペア:

[(1, 245786140), (2, 122893070), (4, 61446535), (5, 49157228), (10, 24578614), (20, 12289307), (223, 1102180), (446, 551090), (892, 275545), (1115, 220436), (2230, 110218), (4460, 55109)]