20005356020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1697}}^1\times {\mathrm{45341}}^1$

素因数の和:47060

約数の個数: 48

約数和(自身を含む): 45270541008

約数和(自身を除く): 25265184988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1697, 3394, 6788, 8485, 16970, 22061, 33940, 44122, 45341, 88244, 90682, 110305, 181364, 220610, 226705, 441220, 453410, 589433, 906820, 1178866, 2357732, 2947165, 5894330, 11788660, 76943677, 153887354, 307774708, 384718385, 769436770, 1000267801, 1538873540, 2000535602, 4001071204, 5001339005, 10002678010, 20005356020]

約数ペア:

[(1, 20005356020), (2, 10002678010), (4, 5001339005), (5, 4001071204), (10, 2000535602), (13, 1538873540), (20, 1000267801), (26, 769436770), (52, 384718385), (65, 307774708), (130, 153887354), (260, 76943677), (1697, 11788660), (3394, 5894330), (6788, 2947165), (8485, 2357732), (16970, 1178866), (22061, 906820), (33940, 589433), (44122, 453410), (45341, 441220), (88244, 226705), (90682, 220610), (110305, 181364)]