148972955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 199075968

約数和(自身を除く): 50103013

約数列:

[1, 5, 17, 23, 85, 115, 181, 391, 421, 905, 1955, 2105, 3077, 4163, 7157, 9683, 15385, 20815, 35785, 48415, 70771, 76201, 164611, 353855, 381005, 823055, 1295417, 1752623, 6477085, 8763115, 29794591, 148972955]

約数ペア:

[(1, 148972955), (5, 29794591), (17, 8763115), (23, 6477085), (85, 1752623), (115, 1295417), (181, 823055), (391, 381005), (421, 353855), (905, 164611), (1955, 76201), (2105, 70771), (3077, 48415), (4163, 35785), (7157, 20815), (9683, 15385)]