20346940985

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{237379}}^1$

素因数の和:237501

約数の個数: 32

約数和(自身を含む): 29169254400

約数和(自身を除く): 8822313415

約数列:

[1, 5, 7, 31, 35, 79, 155, 217, 395, 553, 1085, 2449, 2765, 12245, 17143, 85715, 237379, 1186895, 1661653, 7358749, 8308265, 18752941, 36793745, 51511243, 93764705, 131270587, 257556215, 581341171, 656352935, 2906705855, 4069388197, 20346940985]

約数ペア:

[(1, 20346940985), (5, 4069388197), (7, 2906705855), (31, 656352935), (35, 581341171), (79, 257556215), (155, 131270587), (217, 93764705), (395, 51511243), (553, 36793745), (1085, 18752941), (2449, 8308265), (2765, 7358749), (12245, 1661653), (17143, 1186895), (85715, 237379)]