81473775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{63901}}^1$

素因数の和:63931

約数の個数: 24

約数和(自身を含む): 142629264

約数和(自身を除く): 61155489

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 63901, 191703, 319505, 958515, 1086317, 1597525, 3258951, 4792575, 5431585, 16294755, 27157925, 81473775]

約数ペア:

[(1, 81473775), (3, 27157925), (5, 16294755), (15, 5431585), (17, 4792575), (25, 3258951), (51, 1597525), (75, 1086317), (85, 958515), (255, 319505), (425, 191703), (1275, 63901)]