31521140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3691}}^1$

素因数の和:3768

約数の個数: 48

約数和(自身を含む): 76911744

約数和(自身を除く): 45390604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3691, 4270, 7382, 8540, 14764, 18455, 25837, 36910, 51674, 73820, 103348, 129185, 225151, 258370, 450302, 516740, 900604, 1125755, 1576057, 2251510, 3152114, 4503020, 6304228, 7880285, 15760570, 31521140]

約数ペア:

[(1, 31521140), (2, 15760570), (4, 7880285), (5, 6304228), (7, 4503020), (10, 3152114), (14, 2251510), (20, 1576057), (28, 1125755), (35, 900604), (61, 516740), (70, 450302), (122, 258370), (140, 225151), (244, 129185), (305, 103348), (427, 73820), (610, 51674), (854, 36910), (1220, 25837), (1708, 18455), (2135, 14764), (3691, 8540), (4270, 7382)]