19608075

素因数分解:

$3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 60

約数和(自身を含む): 37990128

約数和(自身を除く): 18382053

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 135, 207, 225, 345, 405, 421, 575, 621, 675, 1035, 1263, 1725, 1863, 2025, 2105, 3105, 3789, 5175, 6315, 9315, 9683, 10525, 11367, 15525, 18945, 29049, 31575, 34101, 46575, 48415, 56835, 87147, 94725, 145245, 170505, 242075, 261441, 284175, 435735, 726225, 784323, 852525, 1307205, 2178675, 3921615, 6536025, 19608075]

約数ペア:

[(1, 19608075), (3, 6536025), (5, 3921615), (9, 2178675), (15, 1307205), (23, 852525), (25, 784323), (27, 726225), (45, 435735), (69, 284175), (75, 261441), (81, 242075), (115, 170505), (135, 145245), (207, 94725), (225, 87147), (345, 56835), (405, 48415), (421, 46575), (575, 34101), (621, 31575), (675, 29049), (1035, 18945), (1263, 15525), (1725, 11367), (1863, 10525), (2025, 9683), (2105, 9315), (3105, 6315), (3789, 5175)]