128476520

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{47939}}^1$

素因数の和:48017

約数の個数: 32

約数和(自身を含む): 293392800

約数和(自身を除く): 164916280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 47939, 95878, 191756, 239695, 383512, 479390, 958780, 1917560, 3211913, 6423826, 12847652, 16059565, 25695304, 32119130, 64238260, 128476520]

約数ペア:

[(1, 128476520), (2, 64238260), (4, 32119130), (5, 25695304), (8, 16059565), (10, 12847652), (20, 6423826), (40, 3211913), (67, 1917560), (134, 958780), (268, 479390), (335, 383512), (536, 239695), (670, 191756), (1340, 95878), (2680, 47939)]