18940610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2749}}^1$

素因数の和:2822

約数の個数: 32

約数和(自身を含む): 37422000

約数和(自身を除く): 18481390

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 2749, 3445, 5498, 6890, 13745, 27490, 35737, 71474, 145697, 178685, 291394, 357370, 728485, 1456970, 1894061, 3788122, 9470305, 18940610]

約数ペア:

[(1, 18940610), (2, 9470305), (5, 3788122), (10, 1894061), (13, 1456970), (26, 728485), (53, 357370), (65, 291394), (106, 178685), (130, 145697), (265, 71474), (530, 35737), (689, 27490), (1378, 13745), (2749, 6890), (3445, 5498)]