19697015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 27518400

約数和(自身を除く): 7821385

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 389, 533, 779, 1235, 1945, 2665, 3895, 5057, 7391, 10127, 15949, 25285, 36955, 50635, 79745, 96083, 207337, 303031, 480415, 1036685, 1515155, 3939403, 19697015]

約数ペア:

[(1, 19697015), (5, 3939403), (13, 1515155), (19, 1036685), (41, 480415), (65, 303031), (95, 207337), (205, 96083), (247, 79745), (389, 50635), (533, 36955), (779, 25285), (1235, 15949), (1945, 10127), (2665, 7391), (3895, 5057)]