128662950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{65981}}^1$

素因数の和:66009

約数の個数: 48

約数和(自身を含む): 343634256

約数和(自身を除く): 214971306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 65981, 131962, 197943, 329905, 395886, 659810, 857753, 989715, 1649525, 1715506, 1979430, 2573259, 3299050, 4288765, 4948575, 5146518, 8577530, 9897150, 12866295, 21443825, 25732590, 42887650, 64331475, 128662950]

約数ペア:

[(1, 128662950), (2, 64331475), (3, 42887650), (5, 25732590), (6, 21443825), (10, 12866295), (13, 9897150), (15, 8577530), (25, 5146518), (26, 4948575), (30, 4288765), (39, 3299050), (50, 2573259), (65, 1979430), (75, 1715506), (78, 1649525), (130, 989715), (150, 857753), (195, 659810), (325, 395886), (390, 329905), (650, 197943), (975, 131962), (1950, 65981)]