20349140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{761}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 49158144

約数和(自身を除く): 28809004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 761, 764, 955, 1337, 1522, 1910, 2674, 3044, 3805, 3820, 5327, 5348, 6685, 7610, 10654, 13370, 15220, 21308, 26635, 26740, 53270, 106540, 145351, 290702, 581404, 726755, 1017457, 1453510, 2034914, 2907020, 4069828, 5087285, 10174570, 20349140]

約数ペア:

[(1, 20349140), (2, 10174570), (4, 5087285), (5, 4069828), (7, 2907020), (10, 2034914), (14, 1453510), (20, 1017457), (28, 726755), (35, 581404), (70, 290702), (140, 145351), (191, 106540), (382, 53270), (761, 26740), (764, 26635), (955, 21308), (1337, 15220), (1522, 13370), (1910, 10654), (2674, 7610), (3044, 6685), (3805, 5348), (3820, 5327)]