81983775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{64301}}^1$

素因数の和:64331

約数の個数: 24

約数和(自身を含む): 143522064

約数和(自身を除く): 61538289

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 64301, 192903, 321505, 964515, 1093117, 1607525, 3279351, 4822575, 5465585, 16396755, 27327925, 81983775]

約数ペア:

[(1, 81983775), (3, 27327925), (5, 16396755), (15, 5465585), (17, 4822575), (25, 3279351), (51, 1607525), (75, 1093117), (85, 964515), (255, 321505), (425, 192903), (1275, 64301)]