19462780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7001}}^1$

素因数の和:7149

約数の個数: 24

約数和(自身を含む): 41171760

約数和(自身を除く): 21708980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7001, 14002, 28004, 35005, 70010, 140020, 973139, 1946278, 3892556, 4865695, 9731390, 19462780]

約数ペア:

[(1, 19462780), (2, 9731390), (4, 4865695), (5, 3892556), (10, 1946278), (20, 973139), (139, 140020), (278, 70010), (556, 35005), (695, 28004), (1390, 14002), (2780, 7001)]