2019918005

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 2893448064

約数和(自身を除く): 873530059

約数列:

[1, 5, 7, 29, 35, 145, 163, 203, 421, 815, 841, 1015, 1141, 2105, 2947, 4205, 4727, 5705, 5887, 12209, 14735, 23635, 29435, 33089, 61045, 68623, 85463, 137083, 165445, 343115, 354061, 427315, 480361, 685415, 959581, 1770305, 1990067, 2401805, 2478427, 4797905, 9950335, 12392135, 13930469, 57711943, 69652345, 288559715, 403983601, 2019918005]

約数ペア:

[(1, 2019918005), (5, 403983601), (7, 288559715), (29, 69652345), (35, 57711943), (145, 13930469), (163, 12392135), (203, 9950335), (421, 4797905), (815, 2478427), (841, 2401805), (1015, 1990067), (1141, 1770305), (2105, 959581), (2947, 685415), (4205, 480361), (4727, 427315), (5705, 354061), (5887, 343115), (12209, 165445), (14735, 137083), (23635, 85463), (29435, 68623), (33089, 61045)]